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85073 (1263 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2085073
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.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1769125863783071 5.011e-08  
a 2.200422097219781 9.0498e-09 au
q 1.811139732876651 1.0886e-07 au
i 2.953417571686938 5.2852e-06 deg
node 182.5286342294484 9.2828e-05 deg
peri 208.3489311938183 9.4076e-05 deg
M 88.91089654285607 1.7597e-05 deg
tp 2458706.051116406575
(2019-Aug-10.55111641)
5.7457e-05 TDB
period 1192.222800751299
3.26
7.355e-06
2.014e-08
d
yr
n .301956983017889 1.8628e-09 deg/d
Q 2.589704461562911 1.0651e-08 au
  Orbit Determination Parameters
   # obs. used (total)      541  
   data-arc span      16988 days (46.51 yr)  
   first obs. used      1973-09-19  
   last obs. used      2020-03-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53949  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:02:11  

Additional Information
 Earth MOID = .817137 au 
 Jupiter MOID = 2.84534 au 
 T_jup = 3.643 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456928.5 (2014-Sep-28.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1773235141652626 5.0211e-08  
q 1.809815581685501 1.0911e-07 au
tp 2457512.297840149585
(2016-May-03.79784015)
5.4338e-05 TDB
node 182.5701157736441 9.2746e-05 deg
peri 207.9867081536025 9.3987e-05 deg
i 2.953981726846965 5.2899e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      541  
   data-arc span      16988 days (46.51 yr)  
   first obs. used      1973-09-19  
   last obs. used      2020-03-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53949  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:02:11  

Additional Information
 Jupiter MOID = 2.84534 au 
 T_jup = 3.643 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.521139829772052E-15 -5.466374414202728E-15 3.918162586964762E-13 5.729592425286929E-16 7.055307292638257E-15 1.653774195369502E-15
q -5.466374414202728E-15 1.1904981383855E-14 -7.251953762740066E-13 -2.126674252365665E-15 1.164288314867619E-14 -3.550165570958952E-15
tp 3.918162586964762E-13 -7.251953762740066E-13 2.952629165943484E-9 -3.406571173362249E-11 8.372239672129783E-10 -9.100167178064346E-13
node 5.729592425286929E-16 -2.126674252365665E-15 -3.406571173362249E-11 8.601776774353786E-9 -8.599102800351905E-9 -4.859477763775754E-11
peri 7.055307292638257E-15 1.164288314867619E-14 8.372239672129783E-10 -8.599102800351905E-9 8.833497395646168E-9 4.818174706431115E-11
i 1.653774195369502E-15 -3.550165570958952E-15 -9.100167178064346E-13 -4.859477763775754E-11 4.818174706431115E-11 2.798334704489079E-11

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 16.4   n/a MPO296712  
diameter diameter 1.350 km 0.147 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.222   0.085 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85073 (1263 T-2)          Discovered 1973-Sep-29 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

[ 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
2176-Nov-12 00:21 00:05 Iris 0.0442190016956896 0.0442053990095408 0.0442326045602199 2.43653722077646 2.43653716741951 2516143.514647469 5.05720565371171 691.91831096747 28.7181562771484 -11.7337693789333 47697.4430329251 T 15 CATAB v2.0f-lin.ifort 2020-Nov-12 21:02:12 2020-Nov-12 21:02

Alternate Designations
 1263 T-2 = 1999 RB137 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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