Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
(2017 HG4)
Classification: Aten [NEO]          SPK-ID: 3774114
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1866910876160209 5.4971e-05  
a .8623024459477412 3.6026e-05 au
q .7013182644598024 7.6702e-05 au
i 2.983567338035689 0.0010788 deg
node 210.7423359670376 0.00036016 deg
peri 204.8059313055138 0.0016138 deg
M 349.5027156123778 0.10191 deg
tp 2459209.028296996155
(2020-Dec-25.52829700)		 0.083329 TDB
period 292.4743967340596
0.80		 0.018329
5.018e-05		 d
yr
n 1.230876972548609 7.7137e-05 deg/d
Q 1.02328662743568 4.2752e-05 au
   Orbit Determination Parameters
   # obs. used (total)      34  
   data-arc span      31 days  
   first obs. used      2017-04-26  
   last obs. used      2017-05-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      6  
   norm. resid. RMS      .52539  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 19:01:09  

Additional Information
 Earth MOID = .00219228 au 
 Jupiter MOID = 4.18597 au 
 T_jup = 6.833 
[ show covariance matrix ]

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 27.7   n/a MPO411588  

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)		 Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1949-Apr-14 04:47 7_06:54 Earth 0.0288323544899051 0.00585645898607547 0.066828046725476 4.20890777657731 4.18689371983058 2433020.698996834 10494.1007285866 1911202.09803557 20.4690680876948 12.0824955090071 40319.0494507701 T 8 CATAB v2.0g-lin.ifort 2021-Apr-15 19:01:09 2021-Apr-15 19:01
1950-Jun-16 18:36 7_16:57 Venus 0.124251118942102 0.077728585705372 0.189242866427462 10.0299926008908 10.0282499686138 2433449.275161386 11096.9481721994 3694489.52663582 25.3489498611574 -36.067716911893 464829.686655585 T 8 CATAB v2.0g-lin.ifort 2021-Apr-15 19:01:09 2021-Apr-15 19:01
1953-May-22 02:23 3_11:48 Earth 0.444462593290398 0.372698264715066 0.516845106127954 17.2159867550067 17.2156385382925 2434519.599143738 5027.98509525315 3687869.31858976 103.998587006012 -12.7883035945047 111953.892256898 T 8 CATAB v2.0g-lin.ifort 2021-Apr-15 19:01:09 2021-Apr-15 19:01
1953-Sep-23 06:39 7_07:24 Venus 0.139681566440744 0.0598388815080886 0.236661114220962 11.5897145296681 11.5883730557139 2434643.776952087 10523.7506047121 5056792.22546528 10.1704747546288 22.3014344513354 674915.953996056 T 8 CATAB v2.0g-lin.ifort 2021-Apr-15 19:01:09 2021-Apr-15 19:01
1956-Apr-10 08:47 3_08:03 Earth 0.233873006188828 0.146791932649908 0.321171873082038 10.663283933559 10.6622154618086 2435573.866241364 4803.13052270167 4362356.8595264 32.0058345457252 4.44573918186814 64228.3892772578 T 8 CATAB v2.0g-lin.ifort 2021-Apr-15 19:01:09 2021-Apr-15 19:01
1960-May-28 22:11 2_16:56 Earth 0.227503678079794 0.135805665355158 0.322882646710435 10.3184923805351 10.3173572871971 2437083.424558986 3896.44882141608 4883378.62925532 70.2498068441949 -15.6914327660526 91018.6139346983 T 8 CATAB v2.0g-lin.ifort 2021-Apr-15 19:01:09 2021-Apr-15 19:01
1963-Apr-19 13:23 4_23:27 Earth 0.45746416872381 0.365876168279863 0.549065178640995 17.666867945779 17.6665382603426 2438139.057890224 7167.45556967874 4569067.42172091 27.8906345197334 1.55914986782956 54588.4594084201 T 8 CATAB v2.0g-lin.ifort 2021-Apr-15 19:01:09 2021-Apr-15 19:01
1970-Nov-06 14:18 21:27 Venus 0.044283843791572 0.0408904745499688 0.0476931302923499 6.11383471766668 6.10580879270617 2440897.096107305 1287.22393347801 174708.037887156 188.605803568839 -13.9305111543158 7448.55675500491 T 8 CATAB v2.0g-lin.ifort 2021-Apr-15 19:01:09 2021-Apr-15 19:01
1970-Nov-08 11:00 08:01 Earth 0.308183229983774 0.305050485833406 0.311318523965066 9.59769131341151 9.59679045412706 2440898.958332811 481.244138172919 162412.787804283 66.9199600136527 -15.8379279395414 111044.781196924 T 8 CATAB v2.0g-lin.ifort 2021-Apr-15 19:01:09 2021-Apr-15 19:01
1974-Apr-10 19:59 6_02:34 Earth 0.0502374155529189 0.00883050917110692 0.113276016606632 4.89828017782132 4.88744035322724 2442148.332352818 8794.28034304658 3164175.4660715 24.301984045451 10.3087057038132 47190.741243531 T 8 CATAB v2.0g-lin.ifort 2021-Apr-15 19:01:09 2021-Apr-15 19:01
1978-May-23 09:09 2_07:58 Earth 0.425680750351938 0.354376733919051 0.497243059262394 16.6708407489528 16.6704652785286 2443651.881310939 3358.30824533981 3600261.92575655 113.533940058144 -8.24673006694632 63640.8911861843 T 8 CATAB v2.0g-lin.ifort 2021-Apr-15 19:01:09 2021-Apr-15 19:01
1979-May-14 07:56 6_20:08 Venus 0.141524162842787 0.0794555670869276 0.223160306305442 11.0907279856106 11.0893444020681 2444007.830879752 9848.29346944947 4467889.43314261 19.1599863171089 -30.9919253722719 612208.931175384 T 8 CATAB v2.0g-lin.ifort 2021-Apr-15 19:01:09 2021-Apr-15 19:01
1981-Apr-10 16:36 2_05:30 Earth 0.235574193385992 0.162040636865636 0.309248126664044 10.7596854846189 10.7586342339533 2444705.191612083 3209.80636775124 3681508.57876267 28.9387700145674 4.34521566351156 70306.3305837516 T 8 CATAB v2.0g-lin.ifort 2021-Apr-15 19:01:09 2021-Apr-15 19:01
1982-Aug-20 11:50 7_14:54 Venus 0.104518681966015 0.0516588911576419 0.184329166008595 9.82981299018191 9.82769912899437 2445201.993124591 10973.9634825892 4289241.71853167 14.0370013482609 29.4891080822186 418527.211686887 T 8 CATAB v2.0g-lin.ifort 2021-Apr-15 19:01:09 2021-Apr-15 19:01
1985-May-29 09:16 18:30 Earth 0.236977459618466 0.18103118498853 0.293561871483798 10.6566339355649 10.6555788036238 2446214.886334285 1110.27179564035 2872005.16542167 73.7125212761209 -12.0138963599872 70705.3444799747 T 8 CATAB v2.0g-lin.ifort 2021-Apr-15 19:01:09 2021-Apr-15 19:01
1988-Apr-17 22:58 1_20:58 Earth 0.435947605828804 0.392966344006327 0.47893411631249 17.0386267781294 17.038268064365 2447269.457192062 2697.55918696697 2144759.4800242 25.7056778724478 2.05870547730873 74492.8435041184 T 8 CATAB v2.0g-lin.ifort 2021-Apr-15 19:01:09 2021-Apr-15 19:01
1988-Oct-07 21:45 5_23:00 Earth 0.29695288771474 0.292525090153657 0.301943347931701 8.79862788450827 8.79760803750663 2447442.406433575 8580.47973460768 686193.752307424 2.33540979340095 69.9786604792159 3283286.25390285 T 8 CATAB v2.0g-lin.ifort 2021-Apr-15 19:01:09 2021-Apr-15 19:01
1991-Mar-13 11:20 7_17:22 Venus 0.0361378589094001 0.0358483068709173 0.0475327408854435 6.21733186572719 6.20765932796939 2448328.971985275 11122.291839249 1330013.5805664 42.4261213634765 82.7696104548975 122000.164380789 T 8 CATAB v2.0g-lin.ifort 2021-Apr-15 19:01:09 2021-Apr-15 19:01
1992-May-24 06:40 4_05:27 Earth 0.0521075550920837 0.0380922432243193 0.0703968208550145 4.47518940602232 4.4637486235143 2448766.777632054 6086.74446129322 1102294.1928183 40.9051887307683 -40.6233665055305 87820.4527927382 T 8 CATAB v2.0g-lin.ifort 2021-Apr-15 19:01:09 2021-Apr-15 19:01
1995-Nov-03 17:58 20:37 Earth 0.30844808899818 0.307834521855512 0.309070925070434 9.59787700095408 9.59697693267347 2450025.248410563 1237.00761603074 89778.7575844554 5.77926480904445 69.9227269966677 3685647.53965697 T 8 CATAB v2.0g-lin.ifort 2021-Apr-15 19:01:09 2021-Apr-15 19:01
1999-Apr-12 14:36 1_08:59 Earth 0.0352539840632786 0.0264292459020706 0.0441441898840567 4.49443428318809 4.47758645675291 2451281.108303177 1978.537136633 448159.101117979 23.6065938184542 10.0363611880901 34044.4781516382 T 8 CATAB v2.0g-lin.ifort 2021-Apr-15 19:01:09 2021-Apr-15 19:01
1999-Sep-08 09:54 1_19:29 Venus 0.0907256758321206 0.082062343894173 0.100419243475343 8.21151792913371 8.20860256780009 2451429.912825992 2609.46994312615 665314.302136612 19.7228265792836 -46.2496463321701 623927.897401353 T 8 CATAB v2.0g-lin.ifort 2021-Apr-15 19:01:09 2021-Apr-15 19:01
2002-Dec-02 22:06 1_13:44 Earth 0.294186858038482 0.293118636963073 0.2952745468155 8.80096287095472 8.79993370764853 2452611.420500200 2264.42891160088 130891.213802193 36.7405414254461 -65.7654042710741 563492.405848964 T 8 CATAB v2.0g-lin.ifort 2021-Apr-15 19:01:09 2021-Apr-15 19:01
2003-May-24 18:45 09:43 Earth 0.412963016086153 0.403215513870137 0.422718862195025 16.2811524666211 16.2807561691144 2452784.281441740 583.335268281428 495008.40430314 109.968256540792 -10.7862102085402 82934.8230170048 T 8 CATAB v2.0g-lin.ifort 2021-Apr-15 19:01:09 2021-Apr-15 19:01
2006-Apr-12 09:57 07:14 Earth 0.276935450079495 0.268308316070759 0.285563662935736 12.0673573075097 12.0665599814113 2453837.914267208 433.84778215214 431089.797677726 29.632909709615 3.70973987155985 69055.1867986072 T 8 CATAB v2.0g-lin.ifort 2021-Apr-15 19:01:09 2021-Apr-15 19:01
2006-Sep-12 18:10 1_14:29 Earth 0.268574950673154 0.266304832461707 0.270886072025281 7.05703155143315 7.05562560732345 2453991.256782355 2309.341188548 201090.133472873 32.7418944356092 55.4186914051983 395095.042906328 T 8 CATAB v2.0g-lin.ifort 2021-Apr-15 19:01:09 2021-Apr-15 19:01
2008-Apr-14 06:54 20:23 Venus 0.125760638615899 0.117487796016471 0.134289136132837 10.2305367480012 10.2288487900608 2454570.787437223 1223.20216873918 505455.279943166 20.9655364017923 -33.9596858054965 512587.582692823 T 8 CATAB v2.0g-lin.ifort 2021-Apr-15 19:01:09 2021-Apr-15 19:01
2010-Jan-16 15:59 1_13:36 Earth 0.235036144574975 0.232567528271052 0.237506569463599 5.22302748397299 5.22085655478939 2455213.166087529 2256.4788261732 127366.409956706 21.65419720394 -15.2846754904573 123079.286946699 T 8 CATAB v2.0g-lin.ifort 2021-Apr-15 19:01:09 2021-Apr-15 19:01
2010-May-31 04:00 02:22 Earth 0.173038980986649 0.1667069894093 0.179396524140309 8.57400385051697 8.57220775170954 2455347.666487155 142.263092449031 333314.204535989 59.9230469153654 -18.3720717771717 92610.2567639009 T 8 CATAB v2.0g-lin.ifort 2021-Apr-15 19:01:09 2021-Apr-15 19:01
2011-Jul-24 05:54 12:45 Venus 0.148489668630884 0.142124846563003 0.15490044928042 12.0275634123929 12.0263474587847 2455766.745805570 764.873932988031 344145.902083426 10.9868441751282 22.2407010567629 630109.930179465 T 8 CATAB v2.0g-lin.ifort 2021-Apr-15 19:01:09 2021-Apr-15 19:01
2013-Oct-20 23:28 13:02 Earth 0.303091991131448 0.302681830601103 0.3035069905021 9.27784915951309 9.27690158631769 2456586.477913328 782.422721431319 63800.9868138898 4.32966389296015 71.1948747336419 3348192.98775394 T 8 CATAB v2.0g-lin.ifort 2021-Apr-15 19:01:09 2021-Apr-15 19:01
2017-Apr-21 09:53 < 00:01 Moon 0.00176682393268739 0.00176485762843625 0.00176879286861914 4.03364783135252 4.02904658699291 2457864.911969771 0.837559274952249 145.650366468996 3.13493188287016 47.7573613788947 70853.995337887 T 8 CATAB v2.0g-lin.ifort 2021-Apr-15 19:01:09 2021-Apr-15 19:01
2017-Apr-22 06:24 < 00:01 Earth 0.00156145517090481 0.00155949857477029 0.00156341130730287 4.02303704799678 3.57379510030026 2457865.766659121 0.360915842181905 86.0603273142902 1.47490110475567 21.886422926622 24756.2058823032 T 8 CATAB v2.0g-lin.ifort 2021-Apr-15 19:01:09 2021-Apr-15 19:01
2021-Apr-16 16:23 17:15 Earth 0.0196527362716552 0.015763853995776 0.0235385436038985 4.12772183218864 4.09474437013747 2459321.182810516 1035.1664225607 193452.000850247 5.55002821703041 1.20647019946242 6697.87130195151 T 8 CATAB v2.0g-lin.ifort 2021-Apr-15 19:01:09 2021-Apr-15 19:01
2025-Jan-08 09:21 6_09:49 Venus 0.0183069516419429 0.0169469604040494 0.0308945538162433 5.21783915980787 5.19505613381981 2460683.889571209 9229.04407575573 944250.152099125 11.8490029983465 67.8410287388319 197008.207007304 T 8 CATAB v2.0g-lin.ifort 2021-Apr-15 19:01:09 2021-Apr-15 19:01
2025-Apr-12 16:25 13:10 Earth 0.189163364489418 0.172693747581605 0.205637762837663 9.44010467803879 9.4386124580842 2460778.184187439 790.002101933968 822760.557269337 8.53986206671589 3.49963295076986 145936.979190376 T 8 CATAB v2.0g-lin.ifort 2021-Apr-15 19:01:09 2021-Apr-15 19:01
2025-Sep-16 03:50 5_12:50 Earth 0.238050277102149 0.232424330618234 0.244091823927742 6.02476184407009 6.02290373690828 2460934.659855020 7969.72925607809 575168.638431901 6.12395719859139 59.6369483673793 1725765.80524734 T 8 CATAB v2.0g-lin.ifort 2021-Apr-15 19:01:09 2021-Apr-15 19:01
2029-Apr-21 06:24 3_07:51 Earth 0.412494564732918 0.339257641090604 0.485736978512095 16.3550729782655 16.3546780239314 2462247.766453243 4790.65953115626 3652937.05558826 10.157130522124 1.2621510525633 106500.020862745 T 8 CATAB v2.0g-lin.ifort 2021-Apr-15 19:01:09 2021-Apr-15 19:01
2034-Jun-06 22:49 6_15:07 Earth 0.408834470913588 0.271492679118444 0.548243028980226 16.1270027934131 16.1265986675632 2464120.450683964 9547.47888455471 7051006.59068939 26.8637831592308 -11.1724303554947 347848.559604172 T 8 CATAB v2.0g-lin.ifort 2021-Apr-15 19:01:09 2021-Apr-15 19:01
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-17 04:09 UT
(server date/time)   		NASA Home Page
Site Manager:   Ryan S. Park
Webmaster:   Alan B. Chamberlin