2012 WJ4

Initial reported observation by Lincoln Laboratory ETS, New Mexico on 2012-11-19.
(Discoverer will be defined when the object is numbered. See this note on how discoverers are determined.)

Orbit

Orbit type: Mars-crosser

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epoch2023-02-25.0
epoch JD2460000.5
perihelion date2018-08-01.14751
perihelion JD2458331.64751
argument of perihelion (°)164.06097
ascending node (°)248.77464
inclination (°)16.51165
eccentricity0.5879606
perihelion distance (AU)1.3046799
Tisserand w.r.t. Jupiter2.9
ΔV w.r.t. Earth (km/sec)8.9
semimajor axis (AU)3.1663956
mean anomaly (°)291.92685
mean daily motion (°/day)0.17492670
aphelion distance (AU)5.028
period (years)5.63
P-vector [x]0.59354763
P-vector [y]0.70386230
P-vector [z]0.39022951
Q-vector [x]-0.75994277
Q-vector [y]0.64978946
Q-vector [z]-0.01614455
absolute magnitude17.98
phase slope0.15
uncertainty2
referenceMPO 750185
observations used78
oppositions3
arc length (days)3864
first opposition used2012
last opposition used2023
residual rms (arc-secs)0.26
perturbers coarse indicatorM-v
perturbers precise indicator003Ek
first observation date used2012-11-19.0
last observation date used2023-06-19.0
computer nameMPCLINUX
JD of orbit computation2458519.481369
perihelion JD uncertainty (days)1.1264E-03
argument of perihelion uncertainty (°)1.8171E-04
ascending node uncertainty (°)4.5029E-05
inclination uncertainty (°)2.4671E-05
eccentricity uncertainty 4.6034E-07
perihelion distance uncertainty (AU)1.0892E-06
 Minimum Orbit Intersection Distances (in AU)
for orbit epoch: 2460000.5, reference: E2023-M63
Mercury0.99288
Venus0.58883
Earth0.32345
Mars0.19195
Jupiter0.48978
Saturn5.02186
Uranus13.8688
Neptune25.676

Observations

78 total observations over interval: 2012 11 19.12808 – 2023 06 19.510069
These data are available for download (format description).

Date (UT) J2000 RA J2000 Dec Magn Location Ref
2012 11 19.12808 23 06 05.44 +17 59 19.1 19.1   704 – Lincoln Laboratory ETS, New Mexico MPS 443653
2012 11 19.14263 23 06 07.73 +17 59 03.5 19.3   704 – Lincoln Laboratory ETS, New Mexico MPS 443653
2012 11 19.15726 23 06 10.11 +17 58 47.7 19.7   704 – Lincoln Laboratory ETS, New Mexico MPS 443653
2012 11 19.17191 23 06 12.52 +17 58 30.4 19.4   704 – Lincoln Laboratory ETS, New Mexico MPS 443653
2012 11 19.18677 23 06 14.96 +17 58 14.8 19.7   704 – Lincoln Laboratory ETS, New Mexico MPS 443653
2012 11 20.05017 23 08 41.21 +17 42 47.4 18.5   704 – Lincoln Laboratory ETS, New Mexico MPS 443653
2012 11 20.06511 23 08 43.68 +17 42 31.8 18.9   704 – Lincoln Laboratory ETS, New Mexico MPS 443653
2012 11 20.07980 23 08 46.04 +17 42 15.8 19.3   704 – Lincoln Laboratory ETS, New Mexico MPS 443653
2012 11 20.09463 23 08 48.57 +17 41 59.4 19.4   704 – Lincoln Laboratory ETS, New Mexico MPS 443653
2012 11 20.10958 23 08 51.02 +17 41 44.1 19.2   704 – Lincoln Laboratory ETS, New Mexico MPS 443653
2012 11 20.83430 23 10 54.83 +17 28 45.6 18.4 R 204 – Schiaparelli Observatory MPS 443653
2012 11 20.84212 23 10 56.15 +17 28 37.3   204 – Schiaparelli Observatory MPS 443653
2012 11 20.84998 23 10 57.46 +17 28 29.1   204 – Schiaparelli Observatory MPS 443653
2012 11 20.88094 23 11 02.69 +17 27 56.5 18.5 R A24 – New Millennium Observatory, Mozzate MPS 443653
2012 11 20.88596 23 11 03.53 +17 27 51.1 19.0 R A24 – New Millennium Observatory, Mozzate MPS 443653
2012 11 20.89097 23 11 04.41 +17 27 45.5 18.9 R A24 – New Millennium Observatory, Mozzate MPS 443653
2012 11 20.89599 23 11 05.26 +17 27 40.1 18.8 R A24 – New Millennium Observatory, Mozzate MPS 443653
2012 11 20.90101 23 11 06.17 +17 27 34.5 19.0 R A24 – New Millennium Observatory, Mozzate MPS 443653
2012 11 21.11200 23 11 42.84 +17 23 52.1 19.0 R H36 – Sandlot Observatory, Scranton MPS 443653
2012 11 21.12241 23 11 44.58 +17 23 40.9 19.1 R H36 – Sandlot Observatory, Scranton MPS 443653
2012 11 21.13214 23 11 46.23 +17 23 30.7 19.0 R H36 – Sandlot Observatory, Scranton MPS 443653
2012 11 21.14175 23 11 47.84 +17 23 19.9 19.1 R H36 – Sandlot Observatory, Scranton MPS 443653
2012 11 21.89806 23 13 59.59 +17 09 55.7 18.6 V B28 – Mandi Observatory, Pagnacco MPS 443653
2012 11 21.91701 23 14 02.88 +17 09 35.8 18.7 V B28 – Mandi Observatory, Pagnacco MPS 443653
2012 11 21.92031 23 14 03.45 +17 09 32.0 18.6 V B28 – Mandi Observatory, Pagnacco MPS 443653
2012 11 22.058030 23 14 28.23 +17 07 10.0 18.4 V H21 – Astronomical Research Observatory, Westfield MPS 443653
2012 11 22.062740 23 14 29.04 +17 07 05.0 18.6 V H21 – Astronomical Research Observatory, Westfield MPS 443653
2012 11 22.067454 23 14 29.84 +17 06 59.8 18.5 V H21 – Astronomical Research Observatory, Westfield MPS 443653
2012 11 22.072135 23 14 30.63 +17 06 54.8 18.3 V H21 – Astronomical Research Observatory, Westfield MPS 443653
2012 11 22.20601 23 14 53.66 +17 04 30.7 19.0 V 932 – John J. McCarthy Obs., New Milford MPS 443653
2012 11 22.21729 23 14 55.58 +17 04 17.7 19.4 V 932 – John J. McCarthy Obs., New Milford MPS 443653
2012 11 22.74461 23 16 30.00 +16 55 04.1 18.6 V B86 – Sternwarte Hagen MPS 443653
2012 11 22.75070 23 16 31.08 +16 54 58.0 18.7 V B86 – Sternwarte Hagen MPS 443653
2012 11 22.75677 23 16 32.15 +16 54 51.5 18.5 V B86 – Sternwarte Hagen MPS 443653
2012 11 22.76286 23 16 33.18 +16 54 45.3 18.4 V B86 – Sternwarte Hagen MPS 443653
2012 11 22.76896 23 16 34.27 +16 54 38.3 18.4 V B86 – Sternwarte Hagen MPS 443653
2012 11 22.77506 23 16 35.29 +16 54 32.1 18.3 V B86 – Sternwarte Hagen MPS 443653
2012 11 22.80188 23 16 40.03 +16 54 06.5 18.9 R B74 – Santa Maria de Montmagastrell MPS 443653
2012 11 22.80608 23 16 40.77 +16 54 02.1 19.0 R B74 – Santa Maria de Montmagastrell MPS 443653
2012 11 22.81081 23 16 41.59 +16 53 57.0 19.1 R B74 – Santa Maria de Montmagastrell MPS 443653
2012 11 22.85275 23 16 48.85 +16 53 11.4 18.9 V B86 – Sternwarte Hagen MPS 443653
2012 11 22.85887 23 16 49.94 +16 53 04.1 18.5 V B86 – Sternwarte Hagen MPS 443653
2012 11 22.88097 23 16 53.75 +16 52 40.9 18.9 V B86 – Sternwarte Hagen MPS 443653
2012 11 22.88706 23 16 54.81 +16 52 34.3 18.9 V B86 – Sternwarte Hagen MPS 443653
2012 12 03.75899 23 51 47.50 +13 53 25.5 19.1 R B88 – Bigmuskie Observatory, Mombercelli MPS 445017
2012 12 03.78312 23 51 52.37 +13 53 03.5 18.9 R B88 – Bigmuskie Observatory, Mombercelli MPS 445017
2012 12 03.80687 23 51 57.16 +13 52 42.5 18.8 R B88 – Bigmuskie Observatory, Mombercelli MPS 445017
2012 12 03.97905 23 52 32.57 +13 50 05.3   I15 – Wishing Star Observatory, Barrington MPS 445017
2012 12 03.98338 23 52 33.47 +13 50 00.8   I15 – Wishing Star Observatory, Barrington MPS 445017
2012 12 03.98772 23 52 34.33 +13 49 57.4   I15 – Wishing Star Observatory, Barrington MPS 445017
2012 12 04.13009 23 53 03.29 +13 47 49.2 19.4 R G48 – Harlingten Research Observatory, Rancho Hildal MPS 445017
2012 12 04.13103 23 53 03.49 +13 47 48.0 19.2 R G48 – Harlingten Research Observatory, Rancho Hildal MPS 445017
2012 12 04.13197 23 53 03.65 +13 47 47.1 19.4 R G48 – Harlingten Research Observatory, Rancho Hildal MPS 445017
2012 12 04.13289 23 53 03.83 +13 47 46.7 19.3 R G48 – Harlingten Research Observatory, Rancho Hildal MPS 445017
2012 12 04.13382 23 53 04.02 +13 47 45.5 19.2 R G48 – Harlingten Research Observatory, Rancho Hildal MPS 445017
2012 12 06.13130 23 59 57.49 +13 17 49.8 19.0   704 – Lincoln Laboratory ETS, New Mexico MPS 445017
2012 12 06.14447 00 00 00.08 +13 17 36.5 19.4   704 – Lincoln Laboratory ETS, New Mexico MPS 445017
2012 12 06.17079 00 00 05.45 +13 17 13.5 18.8   704 – Lincoln Laboratory ETS, New Mexico MPS 445017
2012 12 06.18394 00 00 08.16 +13 17 02.0 19.5   704 – Lincoln Laboratory ETS, New Mexico MPS 445017
2012 12 06.96284 00 02 51.84 +13 05 37.3   I42 – Westport Observatory MPS 445017
2012 12 06.96819 00 02 52.98 +13 05 32.5   I42 – Westport Observatory MPS 445017
2012 12 13.99486 00 28 01.71 +11 30 30.4   I42 – Westport Observatory MPS 446160
2012 12 13.99804 00 28 02.39 +11 30 28.1   I42 – Westport Observatory MPS 446160
2012 12 14.97193 00 31 35.96 +11 18 27.1   I42 – Westport Observatory MPS 447891
2012 12 14.97825 00 31 37.31 +11 18 22.2   I42 – Westport Observatory MPS 447891
2013 01 07.96943 02 00 04.03 +07 57 39.7   I42 – Westport Observatory MPS 449730
2013 01 07.97375 02 00 04.95 +07 57 39.5   I42 – Westport Observatory MPS 449730
2018 12 17.623531 10 45 04.855 -12 49 39.04 21.42 G F51 – Pan-STARRS 1, Haleakala MPS 952548
2018 12 17.632700 10 45 05.063 -12 49 46.57 21.34 G F51 – Pan-STARRS 1, Haleakala MPS 952548
2018 12 31.57372 10 47 32.035 -15 41 16.62 21.1 w F51 – Pan-STARRS 1, Haleakala MPS 967388
2018 12 31.59695 10 47 31.894 -15 41 31.36 21.2 w F51 – Pan-STARRS 1, Haleakala MPS 967388
2018 12 31.60854 10 47 31.825 -15 41 38.59 21.1 w F51 – Pan-STARRS 1, Haleakala MPS 967388
2019 01 17.56401 10 41 32.842 -18 02 39.28 21.2 i F51 – Pan-STARRS 1, Haleakala MPS 952548
2019 01 17.57628 10 41 32.354 -18 02 43.37 21.2 i F51 – Pan-STARRS 1, Haleakala MPS 952548
2019 01 17.58854 10 41 31.858 -18 02 47.50 21.0 i F51 – Pan-STARRS 1, Haleakala MPS 952548
2023 06 19.484405 20 16 24.086 -02 41 47.57 21.75 w F52 – Pan-STARRS 2, Haleakala MPS 1894105
2023 06 19.497234 20 16 23.651 -02 41 42.57 21.97 w F52 – Pan-STARRS 2, Haleakala MPS 1894105
2023 06 19.510069 20 16 23.218 -02 41 37.83 21.82 w F52 – Pan-STARRS 2, Haleakala MPS 1894105