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43871 (1994 TW15)
Classification: Main-belt Asteroid          SPK-ID: 2043871
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2260977984422484 4.2001e-08  
a 2.556223287831428 1.2119e-08 au
q 1.978266830125936 1.0428e-07 au
i 3.605570069033161 4.0587e-06 deg
node 220.6911466173354 0.00010003 deg
peri 152.2242971395679 0.00010116 deg
M 147.4233397215523 1.9535e-05 deg
tp 2458589.191615940432
(2019-Apr-15.69161594)
7.8152e-05 TDB
period 1492.782748492243
4.09
1.0616e-05
2.907e-08
d
yr
n .2411603432338773 1.715e-09 deg/d
Q 3.134179745536919 1.4859e-08 au
  Orbit Determination Parameters
   # obs. used (total)      883  
   data-arc span      10613 days (29.06 yr)  
   first obs. used      1992-03-02  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5796  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 05:27:39  

Additional Information
 Earth MOID = .978312 au 
 Jupiter MOID = 2.33951 au 
 T_jup = 3.398 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.10   n/a MPCxxxxx  
diameter diameter 3.936 km 0.127 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.072   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

43871 (1994 TW15)          Discovered 1994-Oct-13 by Madonna di Dossobuono at Dossobuono
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1994 TW15 = 1998 QV61 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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