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3908 Nyx (1980 PA)
Classification: Amor [NEO]          SPK-ID: 2003908
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 191 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4589935863443808 3.9662e-09  
a 1.927872799505316 3.8286e-09 au
q 1.04299154924459 8.061e-09 au
i 2.18557283121988 1.2629e-06 deg
node 261.2507057821683 4.5525e-05 deg
peri 126.5623975488924 4.513e-05 deg
M 296.5588785368722 4.3983e-06 deg
tp 2459172.799628649815
(2020-Nov-19.29962865)
1.245e-05 TDB
period 977.7233580270821
2.68
2.9125e-06
7.974e-09
d
yr
n .3682023110570182 1.0968e-09 deg/d
Q 2.812754049766042 5.5858e-09 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A2 [EST] 2.12721582557442E-14 4.752E-15
ALN [SET] 1. n/a
NK [SET] 0. n/a
NM [SET] 2. n/a
R0 [SET] 1. n/a
  Orbit Determination Parameters
   # obs. used (total)      1699  
   # delay obs. used      15  
   # Doppler obs. used      1  
   data-arc span      14642 days (40.09 yr)  
   first obs. used      1980-08-06  
   last obs. used      2020-09-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46067  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Sep-13 07:25:22  

Additional Information
 Earth MOID = .0573946 au 
 Jupiter MOID = 2.64644 au 
 T_jup = 3.780 
 Nongravitational accels. using nonstandard g(r) = (1 au/ r)^2 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.3   n/a MPO253389  
diameter diameter 1.0 km 0.15 Benner et al. (2002) Icaurs 158:379-388  
rotation period rot_per 4.42601 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Drummond, J.D.; Wisniewski, W.Z. (1990) Icarus 83, 349-359.]
[Kaasalainen, M.; et al. (2004) Icarus 167, 178-196.]
[Cooney, Jr.; W.R.; Gross, J.; Terrell, D.; Reddy, V.; Dyvig, R. (2007) Minor Planet Bull. 34, 47-48.]
geometric albedo albedo 0.23   n/a Hazards due to Comets and Asteroids (1994), Ed. T. Gehrels, pp.540-543  
Tholen spectral type spec_T V   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 4 color indices; used ground-based radiometric albedo
SMASSII spectral type spec_B V   n/a Binzel et al. (2004) Icarus 170, 259-294  

3908 Nyx           Discovered 1980 Aug. 6 by H.-E. Schuster at the European Southern Observatory.
Named for the goddess and personification of the night. She was a daughter of Chaos and had many children by her brother Erebus, who personifies the subterranean darkness. The realm of Nyx was in the far West, beyond the land of Atlas.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19990402/MPCPages.arcLast Updated: 2010-06-11

[ 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
1905-Nov-19 19:20 00:01 Earth 0.201274381334488 0.201265589450836 0.201283173231995 10.9045839475802 10.9033698909843 2417169.305408157 1.03958471799091 446.255195381494 3.07959007376212 -10.7955179965898 1397853.34115794 T 191 CATAB v2.0f-lin.ifort 2020-Sep-13 07:25:33 2020-Sep-13 07:26
1913-Nov-30 16:33 < 00:01 Earth 0.36591095000684 0.365902903017484 0.365918996997132 16.0133182889618 16.0128635504029 2420102.189372129 0.681630167289504 402.318495204387 3.18404093321438 -4.16714593785194 1019511.67425889 T 191 CATAB v2.0f-lin.ifort 2020-Sep-13 07:25:33 2020-Sep-13 07:26
1932-Dec-08 13:26 < 00:01 Mars 0.0930900739945542 0.0930896968522279 0.0930904512311867 9.71592665339321 9.71561011553591 2427050.059604717 0.467633731720668 163.42199718479 7.79160985218059 -83.9795874940394 1780713.18657072 T 191 CATAB v2.0f-lin.ifort 2020-Sep-13 07:25:33 2020-Sep-13 07:26
1937-Sep-18 01:13 < 00:01 Mars 0.083000289875806 0.0829996054217509 0.0830009744429993 9.55698960071875 9.55662867846145 2428794.550894649 0.345521801664169 159.472716296333 6.62729630964418 77.8681910096892 1845582.70376906 T 191 CATAB v2.0f-lin.ifort 2020-Sep-13 07:25:33 2020-Sep-13 07:26
1964-Aug-25 07:30 < 00:01 Earth 0.469879452557524 0.469878434117175 0.469880470997873 19.1171816773931 19.116885053996 2438632.812538606 0.0858061823062203 50.9836455443093 2.53283059384272 -5.0736513216501 2361926.70091446 T 191 CATAB v2.0f-lin.ifort 2020-Sep-13 07:25:33 2020-Sep-13 07:26
1972-Sep-05 16:17 < 00:01 Earth 0.297209614618718 0.297209044016411 0.297210185221042 13.853880921649 13.8532337966237 2441566.178344077 0.0580202356852399 28.6664872070858 2.74587539763971 -7.04768355104386 1973393.49605276 T 191 CATAB v2.0f-lin.ifort 2020-Sep-13 07:25:33 2020-Sep-13 07:26
1980-Sep-18 18:04 < 00:01 Earth 0.148220244643097 0.148220020572522 0.148220468713689 9.0196829041783 9.01768965519613 2444501.252958400 0.0382307613918867 11.5148193293811 2.75370011926098 -14.4700671382732 2016356.66888672 T 191 CATAB v2.0f-lin.ifort 2020-Sep-13 07:25:33 2020-Sep-13 07:26
1988-Oct-11 12:21 < 00:01 Earth 0.0615731464685546 0.061573142869782 0.0615731500673379 5.53535445665288 5.52753129006929 2447446.014615902 0.00275426798167462 2.61380384406558 0.157681994548905 88.1051999975463 37380610.1555521 T 191 CATAB v2.0f-lin.ifort 2020-Sep-13 07:25:33 2020-Sep-13 07:26
1996-Oct-27 20:39 < 00:01 Earth 0.0612872749566602 0.0612872498440625 0.0612873000692614 5.69683626575575 5.68919967547366 2450384.360176759 0.019151098212434 2.61903723761584 1.19180775553083 80.5593582138627 5963506.32476135 T 191 CATAB v2.0f-lin.ifort 2020-Sep-13 07:25:33 2020-Sep-13 07:26
2004-Nov-14 22:45 < 00:01 Earth 0.139428695607337 0.139428692563782 0.139428698650891 8.87579615209484 8.87364284705454 2453324.448114600 0.00776173040305137 3.14602947589591 0.151527844309081 89.974610834955 23455120.6891383 T 191 CATAB v2.0f-lin.ifort 2020-Sep-13 07:25:33 2020-Sep-13 07:26
2012-Nov-28 18:27 < 00:01 Earth 0.31342096996612 0.31342074102987 0.313421198902368 14.421211096717 14.4206215863472 2456260.268491671 0.0218170673146671 11.4665329826924 3.27962465141113 -5.642293180193 3471078.74847662 T 191 CATAB v2.0f-lin.ifort 2020-Sep-13 07:25:33 2020-Sep-13 07:26
2020-Dec-08 23:45 < 00:01 Earth 0.495697893610091 0.495697274536251 0.495698512683932 19.879252881666 19.8789824869636 2459192.489590478 0.0465632344675166 30.8801444527775 3.31224116136569 -1.46983467297627 2102047.7548435 T 191 CATAB v2.0f-lin.ifort 2020-Sep-13 07:25:33 2020-Sep-13 07:26
2071-Sep-05 23:43 < 00:01 Earth 0.320944879379835 0.320938772810131 0.320950985951199 14.6118076391142 14.6112394585111 2477725.488377609 0.604800220622939 306.682063914084 2.70863824311656 -6.84847080980081 1678502.73459846 T 191 CATAB v2.0f-lin.ifort 2020-Sep-13 07:25:33 2020-Sep-13 07:26
2079-Sep-19 14:07 00:01 Earth 0.163076472642571 0.163070114287977 0.163082831007565 9.4961040002728 9.49438326153709 2480661.088425338 1.06200766593891 323.644805887812 2.75181171245194 -11.6339729497292 1297779.91912065 T 191 CATAB v2.0f-lin.ifort 2020-Sep-13 07:25:33 2020-Sep-13 07:26
2087-Oct-08 13:28 00:02 Earth 0.0691490290482442 0.0691461645546661 0.0691518935468574 5.90631685405449 5.89978931345482 2483602.061451305 2.09689218259493 145.843614193633 2.70808960287444 -11.9592739293478 560070.551215038 T 191 CATAB v2.0f-lin.ifort 2020-Sep-13 07:25:33 2020-Sep-13 07:26
2095-Oct-28 02:25 00:03 Earth 0.0587102159207288 0.0587084258855954 0.058712006140074 5.55913520078036 5.55096541474187 2486543.600664372 2.88432787004663 186.84960061399 1.85293087594403 -61.5291669138656 3010822.13964561 T 191 CATAB v2.0f-lin.ifort 2020-Sep-13 07:25:33 2020-Sep-13 07:26
2103-Nov-16 00:53 00:04 Earth 0.124233782468194 0.124213286739378 0.124254278575471 8.30054477143998 8.29796052656962 2489483.536655600 3.86976411457564 1077.74510385796 2.98594654819797 -18.5568958091816 1477703.5727674 T 191 CATAB v2.0f-lin.ifort 2020-Sep-13 07:25:33 2020-Sep-13 07:26
2111-Nov-29 07:45 00:03 Earth 0.272456826674125 0.272426678877419 0.272486974514924 13.1989561409114 13.1982151937014 2492418.823154137 2.85896015349294 1513.25385529172 3.29524223382 -6.5946600879724 1116546.90759268 T 191 CATAB v2.0f-lin.ifort 2020-Sep-13 07:25:33 2020-Sep-13 07:26
2119-Dec-10 15:33 00:03 Earth 0.469300152315067 0.469266524185841 0.469333780446481 19.1005185453695 19.1002212967248 2495352.147689910 2.59533775705106 1677.66052032228 3.36183792999489 -1.76922633184236 542460.694841394 T 191 CATAB v2.0f-lin.ifort 2020-Sep-13 07:25:33 2020-Sep-13 07:26
2127-Sep-05 12:00 00:03 Mars 0.0968664073013366 0.0968523638424046 0.0968804590568668 10.6209758135831 10.6206975385366 2498178.000154600 3.09882698822929 1577.75645176248 6.47986723681427 -63.6432000202342 1979537.4321575 T 191 CATAB v2.0f-lin.ifort 2020-Sep-13 07:25:33 2020-Sep-13 07:26
2170-Sep-03 21:53 00:04 Earth 0.385774627485651 0.385727915120728 0.38582133991544 16.5731547160967 16.5727379628691 2513882.411798071 4.2532147350604 2342.67368041255 2.61010410022159 -6.13055948822651 1916064.02230012 T 191 CATAB v2.0f-lin.ifort 2020-Sep-13 07:25:33 2020-Sep-13 07:26
2178-Sep-17 01:09 00:06 Earth 0.209463957638883 0.209420846229828 0.209507069299216 11.0468851266238 11.0457335685342 2516817.547711222 5.58323461023079 2180.02852588325 2.75681251268109 -9.59696268591968 1417461.96998843 T 191 CATAB v2.0f-lin.ifort 2020-Sep-13 07:25:33 2020-Sep-13 07:26
2186-Oct-03 08:56 00:09 Earth 0.0921973858409832 0.0921720919811119 0.0922226802473562 6.83951409216183 6.83528737959492 2519755.872520274 9.32190221008005 1310.07129538765 2.69509145465197 -15.8213342874022 972645.006371578 T 191 CATAB v2.0f-lin.ifort 2020-Sep-13 07:25:33 2020-Sep-13 07:26
2194-Oct-18 22:31 00:07 Earth 0.0579951838504366 0.0579913726429223 0.0579989951328605 5.44083939699402 5.43238871179797 2522693.438008523 6.8871920547545 216.657035829431 2.07082422614611 28.8075097509218 1600917.98994097 T 191 CATAB v2.0f-lin.ifort 2020-Sep-13 07:25:33 2020-Sep-13 07:26

Alternate Designations
 1980 PA = 1988 XB1 
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