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2077 Kiangsu (1974 YA)
Classification: Mars-crossing Asteroid          SPK-ID: 2002077
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2949095215072392 4.9189e-08  
a 2.327855454731106 8.2264e-09 au
q 1.641348716438339 1.1615e-07 au
i 28.08735191612196 5.6638e-06 deg
node 69.4659821664055 7.7188e-06 deg
peri 344.1823138227672 9.91e-06 deg
M 297.7615264818564 8.5014e-06 deg
tp 2459224.779135456476
(2021-Jan-10.27913546)
3.1526e-05 TDB
period 1297.276173407337
3.55
6.8766e-06
1.883e-08
d
yr
n .2775045186056632 1.471e-09 deg/d
Q 3.014362193023874 1.0652e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1448  
   data-arc span      16665 days (45.63 yr)  
   first obs. used      1974-12-18  
   last obs. used      2020-08-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47294  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:45:20  

Additional Information
 Earth MOID = .663225 au 
 Jupiter MOID = 2.36326 au 
 T_jup = 3.363 
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Orbital Elements at Epoch 2457096.5 (2015-Mar-15.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2967208796693279 4.9451e-08  
q 1.636017597818592 1.1699e-07 au
tp 2456630.545056904061
(2013-Dec-04.04505690)
2.2477e-05 TDB
node 69.49648698138917 7.7147e-06 deg
peri 343.9654076908824 9.8552e-06 deg
i 28.11346110533112 5.6692e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1448  
   data-arc span      16665 days (45.63 yr)  
   first obs. used      1974-12-18  
   last obs. used      2020-08-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47294  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:45:20  

Additional Information
 Jupiter MOID = 2.36326 au 
 T_jup = 3.363 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.445396556066513E-15 -5.778908319531651E-15 -1.478122199699244E-13 8.908696259300052E-16 -6.529252353268464E-14 -7.040488791135379E-15
q -5.778908319531651E-15 1.368673666950473E-14 4.027499733885262E-13 -1.997349286620866E-15 1.678949465919199E-13 1.655310070137464E-14
tp -1.478122199699244E-13 4.027499733885262E-13 5.05237340320192E-10 -2.420842431175139E-13 1.452134157640137E-10 -2.268900016200738E-12
node 8.908696259300052E-16 -1.997349286620866E-15 -2.420842431175139E-13 5.951708956183107E-11 -5.213651442801587E-11 -7.673600258404679E-12
peri -6.529252353268464E-14 1.678949465919199E-13 1.452134157640137E-10 -5.213651442801587E-11 9.712427633660467E-11 6.27714481758646E-12
i -7.040488791135379E-15 1.655310070137464E-14 -2.268900016200738E-12 -7.673600258404679E-12 6.27714481758646E-12 3.21398133617309E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.6   n/a MPO279535  
diameter diameter 3.791 km 0.609 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
rotation period rot_per 104.2 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Stephens, R.D.; French, L.M.; Davitt, C.; Coley, D.R. (2014) Minor Planet Bull. 41, 95-100.]
[Stephens, R.D. (2014) Minor Planet Bull. 41, 226-230.]
geometric albedo albedo 0.358   0.228 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

2077 Kiangsu (1974 YA)          Discovered 1974-Dec-18 by Purple Mountain Observatory at Nanking
Reference: DISCOVERY.DBLast Updated: 2003-08-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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