2017 YA8

Initial reported observation by Pan-STARRS 1, Haleakala on 2017-12-24.
(Discoverer will be defined when the object is numbered. See this note on how discoverers are determined.)

Orbit

Orbit type: Apollo
Near-Earth Object

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epoch2021-07-05.0
epoch JD2459400.5
perihelion date2021-02-25.45819
perihelion JD2459270.95819
argument of perihelion (°)17.46334
ascending node (°)157.25781
inclination (°)11.33316
eccentricity0.2878481
perihelion distance (AU)0.9242562
Tisserand w.r.t. Jupiter4.9
ΔV w.r.t. Earth (km/sec)5.8
semimajor axis (AU)1.2978357
mean anomaly (°)86.35435
mean daily motion (°/day)0.66661380
aphelion distance (AU)1.671
period (years)1.48
P-vector [x]-0.99349661
P-vector [y]0.06590431
P-vector [z]0.09284988
Q-vector [x]-0.08481242
Q-vector [y]-0.97241798
Q-vector [z]-0.21727890
absolute magnitude22.33
phase slope0.15
uncertainty0
referenceMPO 640996
observations used54
oppositions3
arc length (days)1318
first opposition used2017
last opposition used2021
residual rms (arc-secs)0.75
perturbers coarse indicatorM-v
perturbers precise indicator003Ek
first observation date used2017-12-24.0
last observation date used2021-08-03.0
computer nameMPCLINUX
JD of orbit computation2458247.222562
perihelion JD uncertainty (days)2.2168E-05
argument of perihelion uncertainty (°)1.1340E-04
ascending node uncertainty (°)2.3005E-05
inclination uncertainty (°)3.3488E-04
eccentricity uncertainty 1.1136E-05
perihelion distance uncertainty (AU)2.3947E-06
 Minimum Orbit Intersection Distances (in AU)
for orbit epoch: 2459400.5, reference: E2021-P24
Mercury0.52554
Venus0.20454
Earth0.05141
Mars0.20359
Jupiter3.29197
Saturn7.73035
Uranus17.4493
Neptune28.2324

Observations

58 total observations over interval: 2017 12 24.37673 – 2021 08 03.185828
These data are available for download (format description).

Date (UT) J2000 RA J2000 Dec Magn Location Ref
2017 12 24.37673 05 37 37.761 -29 52 21.64 21.8 w F51 – Pan-STARRS 1, Haleakala MPS 854527
2017 12 24.38772 05 37 36.404 -29 52 35.92 21.4 w F51 – Pan-STARRS 1, Haleakala MPS 854527
2017 12 24.39870 05 37 35.051 -29 52 50.36 21.3 w F51 – Pan-STARRS 1, Haleakala MPS 854527
2017 12 26.316398 05 34 03.557 -30 32 52.27 20.8 G 568 – Maunakea MPS 854527
2017 12 26.317341 05 34 03.436 -30 32 53.42 20.8 G 568 – Maunakea MPS 854527
2017 12 31.09995 05 24 31.12 -32 00 12.9 20.6 G 807 – Cerro Tololo Observatory, La Serena MPS 854527
2017 12 31.10489 05 24 30.42 -32 00 17.9 20.9 G 807 – Cerro Tololo Observatory, La Serena MPS 854527
2017 12 31.10961 05 24 29.76 -32 00 22.7 20.8 G 807 – Cerro Tololo Observatory, La Serena MPS 854527
2018 01 01.04946 05 22 31.74 -32 15 26.9 21.2 G 807 – Cerro Tololo Observatory, La Serena MPS 854527
2018 01 01.05590 05 22 30.83 -32 15 33.6 21.0 G 807 – Cerro Tololo Observatory, La Serena MPS 854527
2018 01 01.06233 05 22 29.92 -32 15 40.2 21.1 G 807 – Cerro Tololo Observatory, La Serena MPS 854527
2018 01 16.19947 04 46 04.84 -34 35 26.0 20.9 V 807 – Cerro Tololo Observatory, La Serena MPS 857872
2018 01 16.20176 04 46 04.42 -34 35 25.9 20.7 V 807 – Cerro Tololo Observatory, La Serena MPS 857872
2018 01 16.20430 04 46 03.99 -34 35 26.3 20.8 V 807 – Cerro Tololo Observatory, La Serena MPS 857872
2018 01 21.11827 04 32 22.82 -34 37 26.8 20.3 G 807 – Cerro Tololo Observatory, La Serena MPS 862051
2018 01 21.12165 04 32 22.16 -34 37 26.5 20.5 G 807 – Cerro Tololo Observatory, La Serena MPS 862051
2018 01 21.12502 04 32 21.47 -34 37 25.7 20.5 G 807 – Cerro Tololo Observatory, La Serena MPS 862051
2018 01 23.10649 04 26 27.40 -34 32 08.2 20.4 G 807 – Cerro Tololo Observatory, La Serena MPS 862051
2018 01 23.10987 04 26 26.74 -34 32 07.6 20.4 G 807 – Cerro Tololo Observatory, La Serena MPS 862051
2018 01 23.11327 04 26 26.03 -34 32 06.7 20.5 G 807 – Cerro Tololo Observatory, La Serena MPS 862051
2018 01 26.06307 04 17 05.90 -34 17 38.0 20.6 V 807 – Cerro Tololo Observatory, La Serena MPS 864916
2018 01 26.06648 04 17 05.12 -34 17 36.6 20.3 V 807 – Cerro Tololo Observatory, La Serena MPS 864916
2018 01 26.07038 04 17 04.25 -34 17 34.6 20.7 V 807 – Cerro Tololo Observatory, La Serena MPS 864916
2018 01 28.08737 04 10 10.00 -34 02 51.0 20.7 V 807 – Cerro Tololo Observatory, La Serena MPS 864916
2018 01 28.09170 04 10 08.97 -34 02 48.5 20.4 V 807 – Cerro Tololo Observatory, La Serena MPS 864916
2018 01 28.09666 04 10 07.81 -34 02 45.8 20.5 V 807 – Cerro Tololo Observatory, La Serena MPS 864916
2018 02 03.04435 03 46 11.36 -32 52 18.8 20.5 V 807 – Cerro Tololo Observatory, La Serena MPS 864916
2018 02 03.05007 03 46 09.61 -32 52 12.7 20.6 V 807 – Cerro Tololo Observatory, La Serena MPS 864916
2018 02 03.05590 03 46 07.81 -32 52 06.7 20.5 V 807 – Cerro Tololo Observatory, La Serena MPS 864916
2018 02 04.04039 03 41 26.88 -32 35 30.3 20.2 G 807 – Cerro Tololo Observatory, La Serena MPS 864916
2018 02 04.04366 03 41 25.85 -32 35 26.7 20.0 G 807 – Cerro Tololo Observatory, La Serena MPS 864916
2018 02 04.04716 03 41 24.73 -32 35 22.6 20.3 G 807 – Cerro Tololo Observatory, La Serena MPS 864916
2018 02 04.13340 03 41 00.21 -32 34 59.8   291 – LPL/Spacewatch II MPS 864916
2018 02 04.13641 03 40 59.14 -32 34 54.7 20.8 R 291 – LPL/Spacewatch II MPS 864916
2018 02 04.13941 03 40 58.18 -32 34 50.8 20.5 R 291 – LPL/Spacewatch II MPS 864916
2018 02 05.10340 03 36 06.70 -32 16 41.7 20.1 R 291 – LPL/Spacewatch II MPS 864916
2018 02 05.10707 03 36 05.45 -32 16 37.1 20.0 R 291 – LPL/Spacewatch II MPS 864916
2018 02 05.11073 03 36 04.17 -32 16 32.5 20.2 R 291 – LPL/Spacewatch II MPS 864916
2018 02 09.09647 03 12 32.97 -30 37 40.1   691 – Steward Observatory, Kitt Peak-Spacewatch MPS 864916
2018 02 09.10129 03 12 30.86 -30 37 30.9   691 – Steward Observatory, Kitt Peak-Spacewatch MPS 864916
2018 02 09.10613 03 12 28.74 -30 37 21.6   691 – Steward Observatory, Kitt Peak-Spacewatch MPS 864916
2018 05 08.593451 20 16 53.017 +26 35 07.15 21.98 G T12 – University of Hawaii 88-inch telescope, Maunak MPS 889315
2018 05 08.597412 20 16 52.951 +26 35 07.62 22.08 G T12 – University of Hawaii 88-inch telescope, Maunak MPS 889315
2018 05 08.601368 20 16 52.890 +26 35 08.08 22.09 G T12 – University of Hawaii 88-inch telescope, Maunak MPS 889315
2018 06 14.520455 19 44 26.351 +22 59 08.78 22.11 G T12 – University of Hawaii 88-inch telescope, Maunak MPS 1001455
2018 06 14.522346 19 44 26.134 +22 59 06.88 22.34 G T12 – University of Hawaii 88-inch telescope, Maunak MPS 1001455
2018 06 14.524318 19 44 25.905 +22 59 04.72 22.30 G T12 – University of Hawaii 88-inch telescope, Maunak MPS 1001455
2018 06 14.526159 19 44 25.693 +22 59 02.71 22.17 G T12 – University of Hawaii 88-inch telescope, Maunak MPS 1001455
2020 12 13.29444 09 15 47.44 -21 41 40.9 22.0 G 807 – Cerro Tololo Observatory, La Serena MPS 1306547
2020 12 13.30239 09 15 49.23 -21 41 57.3 21.7 G 807 – Cerro Tololo Observatory, La Serena MPS 1306547
2020 12 13.30639 09 15 50.14 -21 42 05.1 21.8 G 807 – Cerro Tololo Observatory, La Serena MPS 1306547
2020 12 13.31037 09 15 51.01 -21 42 13.4 21.9 G 807 – Cerro Tololo Observatory, La Serena MPS 1306547
2020 12 13.31433 09 15 51.94 -21 42 21.6 22.2 G 807 – Cerro Tololo Observatory, La Serena MPS 1306547
2020 12 14.28291 09 19 41.31 -22 15 20.7 21.4 G 807 – Cerro Tololo Observatory, La Serena MPS 1306547
2020 12 14.28722 09 19 42.29 -22 15 29.6 22.1 G 807 – Cerro Tololo Observatory, La Serena MPS 1306547
2020 12 14.29172 09 19 43.33 -22 15 38.8 21.9 G 807 – Cerro Tololo Observatory, La Serena MPS 1306547
2021 08 03.177311 20 11 19.53 -02 43 39.4 22.4 V H21 – Astronomical Research Observatory, Westfield MPS 1437780
2021 08 03.185828 20 11 18.68 -02 43 53.4 22.8 V H21 – Astronomical Research Observatory, Westfield MPS 1437780