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7977 (1977 QQ5)
Classification: Amor [NEO]          SPK-ID: 2007977
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 256 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4661023153117823 3.1842e-08  
a 2.226495279869756 5.9164e-09 au
q 1.188720674891708 7.1162e-08 au
i 25.16446302703137 5.2728e-06 deg
node 134.1643444509629 9.5035e-06 deg
peri 248.0346252195153 1.148e-05 deg
M 298.6560501359723 8.1803e-06 deg
tp 2459207.276095555326
(2020-Dec-23.77609556)
2.797e-05 TDB
period 1213.475730938688
3.32
4.8368e-06
1.324e-08
d
yr
n .2966684794936284 1.1825e-09 deg/d
Q 3.264269884847804 8.6741e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1197  
   data-arc span      23902 days (65.44 yr)  
   first obs. used      1955-03-23  
   last obs. used      2020-08-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48458  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-31 09:30:51  

Additional Information
 Earth MOID = .356811 au 
 Jupiter MOID = 2.65274 au 
 T_jup = 3.385 
[ 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 15.1   n/a MPO319185  
rotation period rot_per 7.456 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (1998) http://www.asu.cas.cz/~ppravec/neo.htm]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Warner, B.D. (2018) Minor Planet Bull. 45, 248-256.]
SMASSII spectral type spec_B S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

7977 (1977 QQ5)          Discovered 1977-Aug-21 by McNaught, R. H. at Siding Spring
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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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
1967-Aug-29 01:08 < 00:01 Earth 0.39309519117078 0.393093858076958 0.393096524286121 12.7921129207859 12.7915830361391 2439731.547138556 0.0848236014730488 160.865343509875 9.20866677746645 -65.7988313864203 5263748.68344628 T 256 CATAB v2.0f-lin.ifort 2020-Aug-31 09:31:12 2020-Aug-31 09:31
1977-Aug-30 06:46 < 00:01 Earth 0.356261093106258 0.356260793959552 0.356261392258108 13.9534161317097 13.9528801231121 2443385.781798088 0.0439355415558273 121.713964199318 12.3652020524746 86.0495158915751 3841806.16998206 T 256 CATAB v2.0f-lin.ifort 2020-Aug-31 09:31:12 2020-Aug-31 09:31
1987-Aug-30 00:55 < 00:01 Earth 0.421311784640933 0.421310643058683 0.42131292622857 16.3606502894816 16.3602637326806 2447037.538387234 0.0549763622533375 96.0431384695275 13.7487549055967 54.4695336537641 3370925.56477725 T 256 CATAB v2.0f-lin.ifort 2020-Aug-31 09:31:12 2020-Aug-31 09:31
1994-Mar-14 13:33 < 00:01 Mars 0.0766218803048798 0.0766206058555924 0.076623154763366 13.9752053871003 13.9749380253126 2449426.064645605 0.119824347271828 76.5746399958153 12.653947267192 -34.446460416575 529841.992323746 T 256 CATAB v2.0f-lin.ifort 2020-Aug-31 09:31:12 2020-Aug-31 09:31
2060-Aug-26 04:47 < 00:01 Earth 0.443670344759912 0.443668430972723 0.443672258566923 12.4014760604136 12.4009917909822 2473697.698979937 0.108772862344102 176.393458926166 7.38764208972103 -57.3244922995557 7147538.79904795 T 256 CATAB v2.0f-lin.ifort 2020-Aug-31 09:31:12 2020-Aug-31 09:31
2070-Aug-29 22:23 < 00:01 Earth 0.364156282937182 0.364155476595924 0.364157089312077 13.2145179841716 13.213964274229 2477353.432920594 0.0614012681152706 186.166513025169 11.2233097103247 -78.0066293067273 4287884.36221025 T 256 CATAB v2.0f-lin.ifort 2020-Aug-31 09:31:12 2020-Aug-31 09:31
2080-Aug-29 18:38 < 00:01 Earth 0.378980667776623 0.378979060354692 0.378982275243233 15.0902996073243 15.0898336950606 2481006.276134173 0.0608652102963198 222.974806228535 13.324585587926 69.2004114895234 3590649.03013762 T 256 CATAB v2.0f-lin.ifort 2020-Aug-31 09:31:12 2020-Aug-31 09:31
2090-Aug-28 13:18 < 00:01 Earth 0.485062854805932 0.485059075047694 0.485066634595577 17.9060391562419 17.9057323822563 2484657.054211830 0.144524449416133 271.29244447275 13.9794140765939 46.0725003762672 3369473.25937303 T 256 CATAB v2.0f-lin.ifort 2020-Aug-31 09:31:12 2020-Aug-31 09:31
2093-Nov-11 07:25 < 00:01 Mars 0.0826523524499173 0.0826480807809817 0.0826566242419891 15.2546643457155 15.2544372800112 2485827.809344213 0.400228322613121 266.068644376613 13.9752785285686 36.8722639179603 529829.567104168 T 256 CATAB v2.0f-lin.ifort 2020-Aug-31 09:31:12 2020-Aug-31 09:31
2153-Aug-25 09:30 < 00:01 Earth 0.489471403744267 0.489465822223694 0.489476985413138 12.2146076178865 12.2141619478511 2507663.895973524 0.345894287932331 508.000568314207 6.52099415280939 -56.7842842183233 8948820.65260382 T 256 CATAB v2.0f-lin.ifort 2020-Aug-31 09:31:12 2020-Aug-31 09:31
2163-Aug-30 04:33 < 00:01 Earth 0.384512805582088 0.384509534418523 0.384516076918324 12.7218843629849 12.7213396604421 2511320.689491382 0.189837630344906 438.599586635428 10.2031448953996 -68.2038688883681 4804019.3371769 T 256 CATAB v2.0f-lin.ifort 2020-Aug-31 09:31:12 2020-Aug-31 09:31
2173-Aug-31 08:04 < 00:01 Earth 0.365512432616664 0.365511073557256 0.365513791878482 14.1407989457753 14.140283427374 2514974.836284610 0.0458636713175292 441.898410194223 12.7210371854038 81.33308332296 3835461.68153599 T 256 CATAB v2.0f-lin.ifort 2020-Aug-31 09:31:12 2020-Aug-31 09:31
2183-Aug-30 09:12 < 00:01 Earth 0.435603874110464 0.435598034916806 0.435609713447068 16.7578998959439 16.7575348851048 2518625.883599715 0.201041916241232 489.876483883228 13.7052054823671 53.5621279493472 3459277.59756621 T 256 CATAB v2.0f-lin.ifort 2020-Aug-31 09:31:12 2020-Aug-31 09:31
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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