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2014 RC

January 01, 1970

2014 RC is a sub-kilometer near-Earth object and Apollo asteroid. The exceptionally fast rotator passed within 0.000267 AU (39,900 km; 24,800 mi) (0.1 lunar distances) of Earth on 7 September 2014. The asteroid is approximately the diameter of the Chelyabinsk meteor,[5] and passed almost as close to Earth as 367943 Duende (2012 DA14) did in 2013.

2014 RC
2014 RC imaged by the Goldstone Radar on 7 September 2014
Discovery[1][2][3]
Discovered byCSS
Discovery siteCatalina Stn.
Discovery date1 September 2014
(first observed only)
Designations
2014 RC
NEO · Apollo[3][4]
Orbital characteristics[4]
Epoch 1 July 2021 (JD 2459396.5)
Uncertainty parameter 3[3][4]
Observation arc18 days w/Radar
Aphelion1.8064 AU
Perihelion0.8211 AU
1.3138 AU
Eccentricity0.3750
1.51 yr (550 d)
155.44°
0° 39m 16.2s / day
Inclination4.5687°
344.91°
71.090°
Earth MOID0.0003 AU (0.1169 LD)
Physical characteristics
Dimensions>22 m (largest axis)[5]
Mean diameter
~12–25 m (est.)[6]
0.004389 h (15.80 s)[7][8]
S/q[5][8]
28 (Nov/Dec 2014)
26.8[3][4]

With an absolute magnitude of 26.8,[4] the asteroid is about 11–25 meters (36–82 ft) in diameter depending on the albedo.[6] Observations by the NASA Infrared Telescope Facility conclude the asteroid is a fairly bright Sq-class asteroid which have an average albedo of around 0.24, and would give the asteroid a spherical equivalent diameter of 12 meters (39 ft).[5] Measurements by multiple telescopes indicate that the asteroid rotates in 15.8 seconds making it one of the fastest rotating asteroids so far discovered.[5][8] Using the 15.8 second rotation period, more accurate radar observations by Goldstone shows the asteroid has a largest axis of at least 22 meters (72 ft).[5] Due to the asteroid's fast rotation, it is a monolith and not a rubble pile.

On 8 September 2115 the asteroid will pass about 0.0053 AU (790,000 km; 490,000 mi) from the Moon.[4] On 5 September 1973, the asteroid passed between 0.01052 AU (1,574,000 km; 978,000 mi) and 0.01207 AU (1,806,000 km; 1,122,000 mi) from Earth.[4] 2014 RC was removed from the JPL Sentry Risk Table on 5 September 2014 and there are no known possible impact dates in the next 100 years.[9]

2014 approach edit

It made a close approach to Earth of 0.000267 AU (39,900 km; 24,800 mi) (0.1 LD) around 18:02 UTC on 7 September 2014.[4][10][11] The asteroid briefly brightened to about apparent magnitude 11.5,[12] but it was still not visible to the naked eye or common binoculars. At the peak brightness the asteroid had a declination of –47,[12] and was most easily visible over New Zealand. During 2014, asteroids 2014 AA and 2014 LY21 have come closer to Earth.

Asteroid 2014 RC[11]
 
Path around the Sun – 3 September 2014.
 
Path near the Earth – 7 September 2014.

The Managua explosion on 6 September 2014 may or may not have been created by a bolide that was missed by millions of people, but either way it was not caused by the close approach of 2014 RC.[5]

Orbital shift edit

During the 2014 Earth close approach the orbital period of 2014 RC was reduced from 600 days to 549 days.[13] The orbital eccentricity decreased while the orbital inclination increased.

Parameter Epoch Aphelion
(Q) 		Perihelion
(q) 		Semi-major axis
(a) 		Eccentricity
(e) 		Period
(p) 		Inclination
(i) 		Longitude ascending node
(Ω) 		Mean anomaly
(M) 		Argument of perihelion
(ω)
Units AU (days) (°)
Pre-flyby 2014-09-01 1.9488 0.8344 1.3916 0.4004 599.62 1.4395° 345.48° 326.12° 65.879°
flyby 2014-09-07 18:02 UTC 2.0284 0.8150 1.4217 0.4267 619.17 1.4217° 345.09° 330.91° 68.602°
Post-flyby 2014-10-01 1.8042 0.8207 1.3124 0.3747 549.18 4.5744° 345.01° 340.41° 71.187°

Close-approach table edit

Object Date (UTC) Date
error
(hours) 		Nominal
distance
(AU) 		Nominal
distance
(LD) 		Minimum
distance
(AU) 		Minimum
distance
(LD) 		Apparent
magnitude
(V)
Earth 1945-09-06 05:53 47.16 0.00442 1.72 0.00101 0.39 17.3
Moon 1945-09-06 14:33 52.48 0.00508 1.98 0.00103 0.40 –
Mars 1957-10-09 13:55 5.40 0.06371 24.78 0.05267 20.49 –
Earth 1973-09-05 21:42 0.62 0.01169 4.55 0.01089 4.24 19.3
Earth 1987-01-17 01:02 0.30 0.03724 14.49 0.03686 14.34 22.4
Earth 1991-09-27 05:38 1.03 0.09911 38.55 0.09878 38.43 27.0
Mars 1999-09-22 14:00 <0.01 0.03739 14.54 0.03712 14.44 –
Earth 2009-12-30 13:10 0.28 0.08634 33.59 0.08622 33.54 26.0
Moon 2014-09-07 08:47 <0.01 0.000845 0.329 0.000845 0.329 –
Earth 2014-09-07 18:02 <0.01 0.000267 0.104 0.000267 0.104 15.9
Earth 2017-09-11 13:50 0.15 0.03864 15.03 0.03850 14.98 23.3
Earth 2020-09-22 21:24 0.35 0.09908 38.54 0.09893 38.48 26.1
Earth 2039-01-21 23:38 0.13 0.06224 24.21 0.06215 24.18 24.0
Earth 2042-01-27 18:19 0.10 0.06322 24.59 0.06313 24.56 23.6
Earth 2109-09-01 16:27 0.07 0.09959 38.74 0.09945 38.69 24.7
Earth 2112-09-06 21:13 0.08 0.02253 8.76 0.02241 8.72 21.1
Moon 2115-09-08 19:11 0.15 0.00558 2.17 0.005350 2.08 –
Earth 2115-09-08 22:50 0.17 0.00785 3.05 0.00763 2.97 18.5
Mars 2140-10-13 22:42 2.85 0.07152 27.82 0.05471 21.28 –
Earth 2159-02-02 22:17 16.90 0.08084 31.45 0.05563 21.64 24.2
Earth 2162-01-19 14:04 38.85 0.09376 36.47 0.07273 28.29 25.2
Earth 2170-09-19 02:08 9.12 0.07413 28.84 0.06707 26.09 25.1
Earth 2173-09-04 16:52 1.38 0.06123 23.82 0.05950 23.15 23.5

See also edit

References edit

  1. ^ "MPEC 2014-R23 : 2014 RC". IAU Minor Planet Center. 3 September 2014. Retrieved 5 September 2014. (K14R00C)
  2. ^ "MPEC 2014-R26 : 2014 RC". IAU Minor Planet Center. 3 September 2014. Retrieved 5 September 2014.
  3. ^ a b c d "2014 RC". Minor Planet Center. Retrieved 7 September 2021.
  4. ^ a b c d e f g h "JPL Small-Body Database Browser: (2014 RC)" (2014-09-07 last obs.). Jet Propulsion Laboratory. Retrieved 7 September 2021.
  5. ^ a b c d e f g . NASA/JPL Near-Earth Object Program Office. Archived from the original on 11 October 2014. Retrieved 9 September 2014.
  6. ^ a b "Asteroid Size Estimator". CNEOS NASA/JPL. Retrieved 7 September 2021.
  7. ^ "LCDB Data for (2014+RC)". Asteroid Lightcurve Database (LCDB). Retrieved 7 September 2021.
  8. ^ a b c Devogèle, Maxime; Moskovitz, Nicholas; Thirouin, Audrey; Gustaffson, Annika; Magnuson, Mitchell; Thomas, Cristina; et al. (November 2019). "Visible Spectroscopy from the Mission Accessible Near-Earth Object Survey (MANOS): Taxonomic Dependence on Asteroid Size". The Astronomical Journal. 158 (5): 196. arXiv:1909.04788. Bibcode:2019AJ....158..196D. doi:10.3847/1538-3881/ab43dd. ISSN 0004-6256. S2CID 202558821.
  9. ^ . NASA/JPL Near-Earth Object Program Office. Archived from the original on 2 June 2002. Retrieved 5 September 2014.
  10. ^ "NASA reports asteroid to pass close, but safely past Earth". clarksvilleonline.com. Clarksville Online. 4 September 2014. Retrieved 4 September 2014.
  11. ^ a b Agle, DC; Brown, Dwayne (3 September 2014). "Small Asteroid to Safely Pass Close to Earth Sunday". NASA. Retrieved 7 September 2014.
  12. ^ a b "2014RC Ephemerides for 7 September 2014". NEODyS (Near Earth Objects – Dynamic Site). Retrieved 5 September 2014.
  13. ^ Horizons output. "Horizon Online Ephemeris System". Retrieved 7 September 2014. ("Ephemeris Type: Elements" PR value)

External links edit

  • ASTEROID 2014 RC Tracking
  • Close Approach of Asteroid 2014 RC (Remanzacco Observatory)
  • Small Asteroid Will Pass Earth Closely but Safely on Sunday (Phil Plait)
  • 2014 RC at NeoDyS-2, Near Earth Objects—Dynamic Site
    • Ephemerides · Observation prediction · Orbital info · MOID · Proper elements · Observational info · Close approaches · Physical info · Orbit animation
  • 2014 RC at ESA–space situational awareness
    • Ephemerides · Observations · Orbit · Physical properties · Summary
  • 2014 RC at the JPL Small-Body Database
    • Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters

January 01, 1970
2014, kilometer, near, earth, object, apollo, asteroid, exceptionally, fast, rotator, passed, within, 000267, lunar, distances, earth, september, 2014, asteroid, approximately, diameter, chelyabinsk, meteor, passed, almost, close, earth, 367943, duende, 2012, . 2014 RC is a sub kilometer near Earth object and Apollo asteroid The exceptionally fast rotator passed within 0 000267 AU 39 900 km 24 800 mi 0 1 lunar distances of Earth on 7 September 2014 The asteroid is approximately the diameter of the Chelyabinsk meteor 5 and passed almost as close to Earth as 367943 Duende 2012 DA14 did in 2013 2014 RC2014 RC imaged by the Goldstone Radar on 7 September 2014Discovery 1 2 3 Discovered byCSSDiscovery siteCatalina Stn Discovery date1 September 2014 first observed only DesignationsMPC designation2014 RCMinor planet categoryNEO Apollo 3 4 Orbital characteristics 4 Epoch 1 July 2021 JD 2459396 5 Uncertainty parameter 3 3 4 Observation arc18 days w RadarAphelion1 8064 AUPerihelion0 8211 AUSemi major axis1 3138 AUEccentricity0 3750Orbital period sidereal 1 51 yr 550 d Mean anomaly155 44 Mean motion0 39m 16 2s dayInclination4 5687 Longitude of ascending node344 91 Argument of perihelion71 090 Earth MOID0 0003 AU 0 1169 LD Physical characteristicsDimensions gt 22 m largest axis 5 Mean diameter 12 25 m est 6 Synodic rotation period0 004389 h 15 80 s 7 8 Spectral typeS q 5 8 Apparent magnitude28 Nov Dec 2014 Absolute magnitude H 26 8 3 4 With an absolute magnitude of 26 8 4 the asteroid is about 11 25 meters 36 82 ft in diameter depending on the albedo 6 Observations by the NASA Infrared Telescope Facility conclude the asteroid is a fairly bright Sq class asteroid which have an average albedo of around 0 24 and would give the asteroid a spherical equivalent diameter of 12 meters 39 ft 5 Measurements by multiple telescopes indicate that the asteroid rotates in 15 8 seconds making it one of the fastest rotating asteroids so far discovered 5 8 Using the 15 8 second rotation period more accurate radar observations by Goldstone shows the asteroid has a largest axis of at least 22 meters 72 ft 5 Due to the asteroid s fast rotation it is a monolith and not a rubble pile On 8 September 2115 the asteroid will pass about 0 0053 AU 790 000 km 490 000 mi from the Moon 4 On 5 September 1973 the asteroid passed between 0 01052 AU 1 574 000 km 978 000 mi and 0 01207 AU 1 806 000 km 1 122 000 mi from Earth 4 2014 RC was removed from the JPL Sentry Risk Table on 5 September 2014 and there are no known possible impact dates in the next 100 years 9 Contents 1 2014 approach 2 Orbital shift 3 Close approach table 4 See also 5 References 6 External links2014 approach editIt made a close approach to Earth of 0 000267 AU 39 900 km 24 800 mi 0 1 LD around 18 02 UTC on 7 September 2014 4 10 11 The asteroid briefly brightened to about apparent magnitude 11 5 12 but it was still not visible to the naked eye or common binoculars At the peak brightness the asteroid had a declination of 47 12 and was most easily visible over New Zealand During 2014 asteroids 2014 AA and 2014 LY21 have come closer to Earth Asteroid 2014 RC 11 nbsp Path around the Sun 3 September 2014 nbsp Path near the Earth 7 September 2014 The Managua explosion on 6 September 2014 may or may not have been created by a bolide that was missed by millions of people but either way it was not caused by the close approach of 2014 RC 5 Orbital shift editDuring the 2014 Earth close approach the orbital period of 2014 RC was reduced from 600 days to 549 days 13 The orbital eccentricity decreased while the orbital inclination increased Parameter Epoch Aphelion Q Perihelion q Semi major axis a Eccentricity e Period p Inclination i Longitude ascending node W Mean anomaly M Argument of perihelion w Units AU days Pre flyby 2014 09 01 1 9488 0 8344 1 3916 0 4004 599 62 1 4395 345 48 326 12 65 879 flyby 2014 09 07 18 02 UTC 2 0284 0 8150 1 4217 0 4267 619 17 1 4217 345 09 330 91 68 602 Post flyby 2014 10 01 1 8042 0 8207 1 3124 0 3747 549 18 4 5744 345 01 340 41 71 187 Close approach table editObject Date UTC Dateerror hours Nominaldistance AU Nominaldistance LD Minimumdistance AU Minimumdistance LD Apparentmagnitude V Earth 1945 09 06 05 53 47 16 0 00442 1 72 0 00101 0 39 17 3 Moon 1945 09 06 14 33 52 48 0 00508 1 98 0 00103 0 40 Mars 1957 10 09 13 55 5 40 0 06371 24 78 0 05267 20 49 Earth 1973 09 05 21 42 0 62 0 01169 4 55 0 01089 4 24 19 3 Earth 1987 01 17 01 02 0 30 0 03724 14 49 0 03686 14 34 22 4 Earth 1991 09 27 05 38 1 03 0 09911 38 55 0 09878 38 43 27 0 Mars 1999 09 22 14 00 lt 0 01 0 03739 14 54 0 03712 14 44 Earth 2009 12 30 13 10 0 28 0 08634 33 59 0 08622 33 54 26 0 Moon 2014 09 07 08 47 lt 0 01 0 000845 0 329 0 000845 0 329 Earth 2014 09 07 18 02 lt 0 01 0 000267 0 104 0 000267 0 104 15 9 Earth 2017 09 11 13 50 0 15 0 03864 15 03 0 03850 14 98 23 3 Earth 2020 09 22 21 24 0 35 0 09908 38 54 0 09893 38 48 26 1 Earth 2039 01 21 23 38 0 13 0 06224 24 21 0 06215 24 18 24 0 Earth 2042 01 27 18 19 0 10 0 06322 24 59 0 06313 24 56 23 6 Earth 2109 09 01 16 27 0 07 0 09959 38 74 0 09945 38 69 24 7 Earth 2112 09 06 21 13 0 08 0 02253 8 76 0 02241 8 72 21 1 Moon 2115 09 08 19 11 0 15 0 00558 2 17 0 005350 2 08 Earth 2115 09 08 22 50 0 17 0 00785 3 05 0 00763 2 97 18 5 Mars 2140 10 13 22 42 2 85 0 07152 27 82 0 05471 21 28 Earth 2159 02 02 22 17 16 90 0 08084 31 45 0 05563 21 64 24 2 Earth 2162 01 19 14 04 38 85 0 09376 36 47 0 07273 28 29 25 2 Earth 2170 09 19 02 08 9 12 0 07413 28 84 0 06707 26 09 25 1 Earth 2173 09 04 16 52 1 38 0 06123 23 82 0 05950 23 15 23 5See also editList of fast rotators minor planets References edit MPEC 2014 R23 2014 RC IAU Minor Planet Center 3 September 2014 Retrieved 5 September 2014 K14R00C MPEC 2014 R26 2014 RC IAU Minor Planet Center 3 September 2014 Retrieved 5 September 2014 a b c d 2014 RC Minor Planet Center Retrieved 7 September 2021 a b c d e f g h JPL Small Body Database Browser 2014 RC 2014 09 07 last obs Jet Propulsion Laboratory Retrieved 7 September 2021 a b c d e f g Reports of Meteorite Strike in Nicaragua and Update on Asteroid 2014 RC NASA JPL Near Earth Object Program Office Archived from the original on 11 October 2014 Retrieved 9 September 2014 a b Asteroid Size Estimator CNEOS NASA JPL Retrieved 7 September 2021 LCDB Data for 2014 RC Asteroid Lightcurve Database LCDB Retrieved 7 September 2021 a b c Devogele Maxime Moskovitz Nicholas Thirouin Audrey Gustaffson Annika Magnuson Mitchell Thomas Cristina et al November 2019 Visible Spectroscopy from the Mission Accessible Near Earth Object Survey MANOS Taxonomic Dependence on Asteroid Size The Astronomical Journal 158 5 196 arXiv 1909 04788 Bibcode 2019AJ 158 196D doi 10 3847 1538 3881 ab43dd ISSN 0004 6256 S2CID 202558821 Date Time Removed NASA JPL Near Earth Object Program Office Archived from the original on 2 June 2002 Retrieved 5 September 2014 NASA reports asteroid to pass close but safely past Earth clarksvilleonline com Clarksville Online 4 September 2014 Retrieved 4 September 2014 a b Agle DC Brown Dwayne 3 September 2014 Small Asteroid to Safely Pass Close to Earth Sunday NASA Retrieved 7 September 2014 a b 2014RC Ephemerides for 7 September 2014 NEODyS Near Earth Objects Dynamic Site Retrieved 5 September 2014 Horizons output Horizon Online Ephemeris System Retrieved 7 September 2014 Ephemeris Type Elements PR value External links editASTEROID 2014 RC Tracking Close Approach of Asteroid 2014 RC Remanzacco Observatory Small Asteroid Will Pass Earth Closely but Safely on Sunday Phil Plait 2014 RC at NeoDyS 2 Near Earth Objects Dynamic Site Ephemerides Observation prediction Orbital info MOID Proper elements Observational info Close approaches Physical info Orbit animation 2014 RC at ESA space situational awareness Ephemerides Observations Orbit Physical properties Summary 2014 RC at the JPL Small Body DatabaseClose approach Discovery Ephemeris Orbit diagram Orbital elements Physical parameters Retrieved from https en wikipedia org w index php title 2014 RC amp oldid 1217013808, wikipedia, wiki, book, books, library,

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