(431768) = 2008 HL54

Discovered at Kitt Peak on 2008-04-29 by Spacewatch.

Orbit

Orbit type: Hilda

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epoch2023-02-25.0
epoch JD2460000.5
perihelion date2017-11-07.95245
perihelion JD2458065.45245
argument of perihelion (°)212.07175
ascending node (°)116.06217
inclination (°)4.10434
eccentricity0.2051653
perihelion distance (AU)3.1628461
Tisserand w.r.t. Jupiter3.0
ΔV w.r.t. Earth (km/sec)10.9
semimajor axis (AU)3.9792504
mean anomaly (°)240.26670
mean daily motion (°/day)0.12416580
aphelion distance (AU)4.796
period (years)7.94
P-vector [x]0.84806109
P-vector [y]-0.46980332
P-vector [z]-0.24510657
Q-vector [x]0.52598338
Q-vector [y]0.80245226
Q-vector [z]0.28180108
absolute magnitude15.6
phase slope0.15
uncertainty0
referenceMPEC 2023-F144
observations used134
oppositions10
arc length (days)7472
first opposition used2002
last opposition used2023
residual rms (arc-secs)0.63
perturbers coarse indicatorM-v
perturbers precise indicator003Ek
first observation date used2002-10-09.0
last observation date used2023-03-25.0
computer nameMPCLINUX
Minimum Orbit Intersection Distances (in AU)
for orbit epoch: 2460000.5, reference: E2023-FE4
Mercury2.75389
Venus2.435
Earth2.15112
Mars1.78
Jupiter0.56082
Saturn4.43605
Uranus13.6715
Neptune25.6496

Observations

136 total observations over interval: 2002 10 09.19615 – 2023 03 25.463536
These data are available for download (format description).

Date (UT) J2000 RA J2000 Dec Magn Location Ref
2002 10 09.19615 01 37 07.92 +03 54 18.3   644 – Palomar Mountain/NEAT MPS 413048
2002 10 09.26888 01 37 05.09 +03 54 00.6   644 – Palomar Mountain/NEAT MPS 413048
2002 10 09.33155 01 37 02.60 +03 53 45.3   644 – Palomar Mountain/NEAT MPS 413048
2008 04 29.39926 15 49 47.87 -15 07 28.9   691 – Steward Observatory, Kitt Peak-Spacewatch MPS 249084
2008 04 29.41689 15 49 47.25 -15 07 26.5   691 – Steward Observatory, Kitt Peak-Spacewatch MPS 249084
2008 04 29.43452 15 49 46.62 -15 07 24.6   691 – Steward Observatory, Kitt Peak-Spacewatch MPS 249084
2008 05 03.36168 15 47 27.28 -14 59 18.0 20.9 V 691 – Steward Observatory, Kitt Peak-Spacewatch MPS 249084
2008 05 03.37933 15 47 26.64 -14 59 15.3 21.4 V 691 – Steward Observatory, Kitt Peak-Spacewatch MPS 249084
2008 05 03.39698 15 47 25.96 -14 59 13.3 21.3 V 691 – Steward Observatory, Kitt Peak-Spacewatch MPS 249084
2008 05 11.32287 15 42 22.77 -14 42 39.5   691 – Steward Observatory, Kitt Peak-Spacewatch MPS 249873
2008 05 11.34056 15 42 22.07 -14 42 37.8   691 – Steward Observatory, Kitt Peak-Spacewatch MPS 249873
2008 05 11.35825 15 42 21.32 -14 42 35.2   691 – Steward Observatory, Kitt Peak-Spacewatch MPS 249873
2008 05 15.29111 15 39 44.19 -14 34 29.8   691 – Steward Observatory, Kitt Peak-Spacewatch MPS 249873
2008 05 15.30644 15 39 43.54 -14 34 28.9   691 – Steward Observatory, Kitt Peak-Spacewatch MPS 249873
2008 05 15.32178 15 39 42.93 -14 34 26.2   691 – Steward Observatory, Kitt Peak-Spacewatch MPS 249873
2008 05 27.27002 15 31 43.93 -14 11 51.6 20.6 V 691 – Steward Observatory, Kitt Peak-Spacewatch MPS 250608
2008 05 27.28765 15 31 43.20 -14 11 50.3 20.7 V 691 – Steward Observatory, Kitt Peak-Spacewatch MPS 250608
2008 05 27.30528 15 31 42.47 -14 11 48.1 20.7 V 691 – Steward Observatory, Kitt Peak-Spacewatch MPS 250608
2008 05 30.34233 15 29 45.07 -14 06 48.0 21.0 V 691 – Steward Observatory, Kitt Peak-Spacewatch MPS 251040
2008 05 30.35994 15 29 44.38 -14 06 46.0 21.0 V 691 – Steward Observatory, Kitt Peak-Spacewatch MPS 251040
2008 05 30.37757 15 29 43.68 -14 06 44.5 20.9 V 691 – Steward Observatory, Kitt Peak-Spacewatch MPS 251040
2009 06 22.38813 20 43 17.97 -18 17 04.7 20.7 V G96 – Mt. Lemmon Survey MPS 353885
2009 06 22.39723 20 43 17.83 -18 17 06.3 20.5 V G96 – Mt. Lemmon Survey MPS 353885
2009 06 22.40623 20 43 17.65 -18 17 07.8 20.9 V G96 – Mt. Lemmon Survey MPS 353885
2009 06 22.41534 20 43 17.50 -18 17 09.0 21.1 V G96 – Mt. Lemmon Survey MPS 353885
2010 07 20.393052 01 50 24.60 +06 56 57.5   C51 – WISE MPS 340793
2010 07 20.525355 01 50 29.91 +06 57 15.8   C51 – WISE MPS 340793
2010 07 20.657660 01 50 35.20 +06 57 34.0   C51 – WISE MPS 340793
2010 07 20.789963 01 50 40.49 +06 57 53.2   C51 – WISE MPS 340793
2010 07 20.856052 01 50 43.14 +06 58 02.5   C51 – WISE MPS 340793
2010 07 20.92214 01 50 45.73 +06 58 11.7   C51 – WISE MPS 340793
2010 07 20.92227 01 50 45.76 +06 58 11.7   C51 – WISE MPS 340793
2010 07 20.988355 01 50 48.40 +06 58 20.9   C51 – WISE MPS 340793
2010 07 21.054443 01 50 50.97 +06 58 29.8   C51 – WISE MPS 340793
2010 07 21.120660 01 50 53.61 +06 58 38.4   C51 – WISE MPS 340793
2010 07 21.186748 01 50 56.20 +06 58 49.0   C51 – WISE MPS 340793
2010 07 21.252963 01 50 58.80 +06 58 56.9   C51 – WISE MPS 340793
2010 07 21.385266 01 51 04.06 +06 59 16.7   C51 – WISE MPS 340793
2010 07 21.51757 01 51 09.28 +06 59 34.1   C51 – WISE MPS 340793
2010 07 21.649874 01 51 14.47 +06 59 52.8   C51 – WISE MPS 340793
2010 10 12.39183 01 47 59.53 +04 58 45.1 20.3 V 691 – Steward Observatory, Kitt Peak-Spacewatch MPS 353885
2010 10 12.40951 01 47 58.81 +04 58 41.3 20.7 V 691 – Steward Observatory, Kitt Peak-Spacewatch MPS 353885
2010 10 12.42718 01 47 58.11 +04 58 36.9 20.7 V 691 – Steward Observatory, Kitt Peak-Spacewatch MPS 353885
2010 10 30.24013 01 36 26.89 +03 55 22.1 20.2 V G96 – Mt. Lemmon Survey MPS 353885
2010 10 30.24495 01 36 26.71 +03 55 21.3 20.6 V G96 – Mt. Lemmon Survey MPS 353885
2010 10 30.24986 01 36 26.53 +03 55 20.2 20.4 V G96 – Mt. Lemmon Survey MPS 353885
2010 10 30.25479 01 36 26.31 +03 55 19.3 20.5 V G96 – Mt. Lemmon Survey MPS 353885
2015 03 21.47217 12 57 23.232 -00 39 06.42 21.9 w F51 – Pan-STARRS 1, Haleakala MPS 592392
2015 03 21.48350 12 57 22.846 -00 39 03.37 21.9 w F51 – Pan-STARRS 1, Haleakala MPS 592392
2015 03 21.50608 12 57 22.078 -00 38 58.22 21.9 w F51 – Pan-STARRS 1, Haleakala MPS 592392
2015 03 22.45938 12 56 50.920 -00 35 11.89 21.7 w F51 – Pan-STARRS 1, Haleakala MPS 592392
2015 03 22.47106 12 56 50.518 -00 35 09.20 21.4 w F51 – Pan-STARRS 1, Haleakala MPS 592392
2015 03 22.48270 12 56 50.117 -00 35 06.11 21.7 w F51 – Pan-STARRS 1, Haleakala MPS 592392
2016 05 03.47911 15 57 48.705 -15 36 20.42 21.1 w F51 – Pan-STARRS 1, Haleakala MPS 708231
2016 05 03.48885 15 57 48.350 -15 36 19.44 20.7 w F51 – Pan-STARRS 1, Haleakala MPS 708231
2016 05 03.49856 15 57 47.986 -15 36 18.62 20.8 w F51 – Pan-STARRS 1, Haleakala MPS 708231
2016 05 07.45590 15 55 21.966 -15 28 39.40 20.9 w F51 – Pan-STARRS 1, Haleakala MPS 709926
2016 05 07.46701 15 55 21.522 -15 28 37.95 21.1 w F51 – Pan-STARRS 1, Haleakala MPS 709926
2016 05 07.47809 15 55 21.092 -15 28 36.80 21.0 w F51 – Pan-STARRS 1, Haleakala MPS 709926
2016 05 07.48915 15 55 20.665 -15 28 35.35 21.0 w F51 – Pan-STARRS 1, Haleakala MPS 709926
2016 05 13.44099 15 51 27.874 -15 17 02.62 21.0 r F51 – Pan-STARRS 1, Haleakala MPS 712020
2016 05 13.45273 15 51 27.378 -15 17 01.11 20.8 r F51 – Pan-STARRS 1, Haleakala MPS 712020
2016 05 13.46450 15 51 26.893 -15 16 59.75 21.0 r F51 – Pan-STARRS 1, Haleakala MPS 712020
2016 06 28.36682 15 25 13.219 -14 25 07.30 21.0 w F51 – Pan-STARRS 1, Haleakala MPS 717385
2016 06 28.37825 15 25 13.019 -14 25 07.31 21.3 w F51 – Pan-STARRS 1, Haleakala MPS 717385
2016 06 28.38966 15 25 12.784 -14 25 07.45 21.3 w F51 – Pan-STARRS 1, Haleakala MPS 717385
2017 07 01.56976 21 07 18.514 -17 19 15.49 21.3 w F51 – Pan-STARRS 1, Haleakala MPS 804837
2017 07 01.57948 21 07 18.315 -17 19 17.19 21.3 w F51 – Pan-STARRS 1, Haleakala MPS 804837
2017 07 01.58923 21 07 18.100 -17 19 18.73 21.3 w F51 – Pan-STARRS 1, Haleakala MPS 804837
2017 07 04.54272 21 06 15.734 -17 27 42.82 20.8 w F51 – Pan-STARRS 1, Haleakala MPS 804837
2017 07 04.55433 21 06 15.445 -17 27 44.89 20.7 w F51 – Pan-STARRS 1, Haleakala MPS 804837
2017 07 04.56594 21 06 15.162 -17 27 46.82 20.7 w F51 – Pan-STARRS 1, Haleakala MPS 804837
2017 07 04.57755 21 06 14.887 -17 27 48.96 20.8 w F51 – Pan-STARRS 1, Haleakala MPS 804837
2017 07 26.41681 20 54 34.915 -18 45 30.44 20.2 w F51 – Pan-STARRS 1, Haleakala MPS 807861
2017 07 26.44089 20 54 33.936 -18 45 36.03 20.2 w F51 – Pan-STARRS 1, Haleakala MPS 807861
2017 07 26.45293 20 54 33.448 -18 45 38.89 20.2 w F51 – Pan-STARRS 1, Haleakala MPS 807861
2017 08 01.43299 20 50 36.044 -19 08 56.92 19.8 i F51 – Pan-STARRS 1, Haleakala MPS 809264
2017 08 01.44296 20 50 35.631 -19 08 59.25 19.9 i F51 – Pan-STARRS 1, Haleakala MPS 809264
2017 08 01.45290 20 50 35.217 -19 09 01.58 19.9 i F51 – Pan-STARRS 1, Haleakala MPS 809264
2017 08 01.46290 20 50 34.801 -19 09 03.99 19.9 i F51 – Pan-STARRS 1, Haleakala MPS 809264
2017 08 16.37043 20 40 51.289 -20 03 06.48 20.3 w F51 – Pan-STARRS 1, Haleakala MPS 812004
2017 08 16.38361 20 40 50.788 -20 03 09.01 20.4 w F51 – Pan-STARRS 1, Haleakala MPS 812004
2017 08 16.39715 20 40 50.267 -20 03 11.68 20.1 w F51 – Pan-STARRS 1, Haleakala MPS 812004
2017 08 16.41053 20 40 49.761 -20 03 14.41 20.4 w F51 – Pan-STARRS 1, Haleakala MPS 812004
2017 08 24.37303 20 36 20.777 -20 27 09.03 21.3 w F51 – Pan-STARRS 1, Haleakala MPS 813321
2017 08 24.38422 20 36 20.421 -20 27 11.03 21.2 w F51 – Pan-STARRS 1, Haleakala MPS 813321
2017 08 24.39540 20 36 20.059 -20 27 12.86 21.0 w F51 – Pan-STARRS 1, Haleakala MPS 813321
2017 08 24.40661 20 36 19.689 -20 27 14.46 21.0 w F51 – Pan-STARRS 1, Haleakala MPS 813321
2017 10 08.22107 20 32 48.919 -21 02 45.28 21.3 w F51 – Pan-STARRS 1, Haleakala MPS 826145
2017 10 08.23272 20 32 49.194 -21 02 44.69 21.3 w F51 – Pan-STARRS 1, Haleakala MPS 826145
2017 10 08.25599 20 32 49.697 -21 02 42.71 21.5 w F51 – Pan-STARRS 1, Haleakala MPS 826145
2018 10 12.72650 02 13 26.88 +07 22 21.5 20.2 R D29 – Purple Mountain Observatory, XuYi Station MPS 927238
2018 10 12.75479 02 13 25.79 +07 22 14.9 20.1 R D29 – Purple Mountain Observatory, XuYi Station MPS 927238
2018 10 18.33239 02 09 51.40 +07 01 58.1 20.3 G G96 – Mt. Lemmon Survey MPS 931046
2018 10 18.33752 02 09 51.21 +07 01 57.1 20.2 G G96 – Mt. Lemmon Survey MPS 931046
2018 10 18.34266 02 09 50.99 +07 01 55.7 20.2 G G96 – Mt. Lemmon Survey MPS 931046
2018 10 18.34779 02 09 50.77 +07 01 54.8 20.1 G G96 – Mt. Lemmon Survey MPS 931046
2018 11 01.39711 02 00 30.803 +06 14 18.36 20.4 w F52 – Pan-STARRS 2, Haleakala MPS 936955
2018 11 01.40920 02 00 30.306 +06 14 16.12 20.5 w F52 – Pan-STARRS 2, Haleakala MPS 936955
2018 11 01.42130 02 00 29.815 +06 14 13.89 20.5 w F52 – Pan-STARRS 2, Haleakala MPS 936955
2018 11 01.43340 02 00 29.328 +06 14 11.57 20.5 w F52 – Pan-STARRS 2, Haleakala MPS 936955
2018 11 02.25505 01 59 57.36 +06 11 41.9 20.8 G G96 – Mt. Lemmon Survey MPS 936955
2018 11 02.26612 01 59 56.94 +06 11 39.6 20.4 G G96 – Mt. Lemmon Survey MPS 936955
2018 11 02.27166 01 59 56.73 +06 11 38.4 20.5 G G96 – Mt. Lemmon Survey MPS 936955
2018 11 02.27721 01 59 56.52 +06 11 37.9 20.9 G G96 – Mt. Lemmon Survey MPS 936955
2018 11 02.40949 01 59 51.351 +06 11 14.58 20.3 w F52 – Pan-STARRS 2, Haleakala MPS 936955
2018 11 02.42302 01 59 50.809 +06 11 12.02 20.3 w F52 – Pan-STARRS 2, Haleakala MPS 936955
2018 11 02.43654 01 59 50.272 +06 11 09.84 20.4 w F52 – Pan-STARRS 2, Haleakala MPS 936955
2018 11 04.265600 01 58 40.04 +06 05 47.6 20.22 r I41 – Palomar Mountain--ZTF MPS 936955
2018 11 04.326490 01 58 37.60 +06 05 37.4 20.88 g I41 – Palomar Mountain--ZTF MPS 936955
2018 11 11.20729 01 54 27.29 +05 47 49.1 20.1 G G96 – Mt. Lemmon Survey MPS 952063
2018 11 11.21248 01 54 27.10 +05 47 48.8 20.6 G G96 – Mt. Lemmon Survey MPS 952063
2018 11 11.21766 01 54 26.91 +05 47 48.0 20.5 G G96 – Mt. Lemmon Survey MPS 952063
2018 11 11.22284 01 54 26.75 +05 47 47.0 20.9 G G96 – Mt. Lemmon Survey MPS 952063
2018 11 13.33428 01 53 15.541 +05 43 09.94 20.4 w F52 – Pan-STARRS 2, Haleakala MPS 952063
2018 11 13.34674 01 53 15.118 +05 43 08.30 20.4 w F52 – Pan-STARRS 2, Haleakala MPS 952063
2018 11 13.35916 01 53 14.690 +05 43 06.62 20.4 w F52 – Pan-STARRS 2, Haleakala MPS 952063
2018 11 13.37154 01 53 14.270 +05 43 05.22 20.5 w F52 – Pan-STARRS 2, Haleakala MPS 952063
2018 11 17.31579 01 51 09.94 +05 35 35.5 20.8 V 691 – Steward Observatory, Kitt Peak-Spacewatch MPS 952063
2018 11 17.33829 01 51 09.23 +05 35 33.4 20.6 V 691 – Steward Observatory, Kitt Peak-Spacewatch MPS 952063
2018 11 17.36050 01 51 08.56 +05 35 30.9 20.5 V 691 – Steward Observatory, Kitt Peak-Spacewatch MPS 952063
2022 03 07.301319 10 40 37.82 +12 10 20.4   V00 – Kitt Peak-Bok MPS 1570400
2022 03 07.307892 10 40 37.62 +12 10 21.1   V00 – Kitt Peak-Bok MPS 1570400
2022 03 07.314475 10 40 37.34 +12 10 22.7   V00 – Kitt Peak-Bok MPS 1570400
2022 03 07.321037 10 40 37.12 +12 10 24.1 22.34 G V00 – Kitt Peak-Bok MPS 1570400
2023 03 16.518128 13 11 05.171 -02 04 57.62 21.44 w F52 – Pan-STARRS 2, Haleakala MPS 1835093
2023 03 16.518759 13 11 05.146 -02 04 57.43 21.65 w F52 – Pan-STARRS 2, Haleakala MPS 1835093
2023 03 16.529743 13 11 04.821 -02 04 55.14 21.53 w F52 – Pan-STARRS 2, Haleakala MPS 1835093
2023 03 16.530376 13 11 04.805 -02 04 54.76 21.68 w F52 – Pan-STARRS 2, Haleakala MPS 1835093
2023 03 16.541396 13 11 04.467 -02 04 52.36 21.47 w F52 – Pan-STARRS 2, Haleakala MPS 1835093
2023 03 16.542027 13 11 04.440 -02 04 52.17 21.66 w F52 – Pan-STARRS 2, Haleakala MPS 1835093
2023 03 16.553023 13 11 04.115 -02 04 49.75 21.41 w F52 – Pan-STARRS 2, Haleakala MPS 1835093
2023 03 16.553656 13 11 04.099 -02 04 49.71 21.59 w F52 – Pan-STARRS 2, Haleakala MPS 1835093
2023 03 25.431190 13 06 26.547 -01 30 49.98 21.33 w F52 – Pan-STARRS 2, Haleakala MPS 1855725
2023 03 25.441963 13 06 26.163 -01 30 47.68 21.42 w F52 – Pan-STARRS 2, Haleakala MPS 1855725
2023 03 25.463536 13 06 25.462 -01 30 42.59 21.37 w F52 – Pan-STARRS 2, Haleakala MPS 1855725