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46478 (1097 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2046478
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .080771212472198 4.1283e-08  
a 2.77956774326089 1.2362e-08 au
q 2.555058686489097 1.1896e-07 au
i 1.836729589892642 4.2669e-06 deg
node 300.0044609080007 0.00012194 deg
peri 69.78999257211692 0.00012456 deg
M 18.84263838506296 2.5339e-05 deg
tp 2458911.906158340175
(2020-Mar-03.40615834)
0.00011898 TDB
period 1692.638915302857
4.63
1.1292e-05
3.092e-08
d
yr
n .2126856453229936 1.4188e-09 deg/d
Q 3.004076800032684 1.336e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1206  
   data-arc span      16879 days (46.21 yr)  
   first obs. used      1973-09-19  
   last obs. used      2019-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .566  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 03:55:18  

Additional Information
 Earth MOID = 1.55494 au 
 Jupiter MOID = 2.40518 au 
 T_jup = 3.328 
[ 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 14.8   n/a MPO359049  
diameter diameter 4.505 km 0.217 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.126   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46478 (1097 T-2)          Discovered 1973-Sep-29 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

[ 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
1954-Oct-13 13:54 00:02 Psych 0.0496600388661621 0.0496570259545809 0.0496630528442315 1.85197709100161 1.85197695944565 2435029.079036723 1.76342419581241 399.947098311536 33.3110247633861 -68.4779586442478 206718.757820027 T 19 CATAB v2.0f-lin.ifort 2019-Dec-14 03:55:32 2019-Dec-14 03:55

Alternate Designations
 1097 T-2 = 2001 RP74 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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