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2762 Fowler (1981 AT)
Classification: Main-belt Asteroid          SPK-ID: 2002762
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1526186855102359 3.8081e-08  
a 2.330603743503955 7.0088e-09 au
q 1.974910063725147 8.882e-08 au
i 4.706253736480512 4.2059e-06 deg
node 304.0603632897405 5.3061e-05 deg
peri 186.2014777912009 5.5034e-05 deg
M 10.96733590513334 1.4974e-05 deg
tp 2458960.908702868137
(2020-Apr-21.40870287)
5.3982e-05 TDB
period 1299.574216633549
3.56
5.8623e-06
1.605e-08
d
yr
n .2770138060545349 1.2496e-09 deg/d
Q 2.686297423282764 8.0785e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2301  
   data-arc span      32631 days (89.34 yr)  
   first obs. used      1930-12-24  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46448  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:44:45  

Additional Information
 Earth MOID = .98978 au 
 Jupiter MOID = 2.36405 au 
 T_jup = 3.551 
[ 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 12.8   n/a MPO347542  
diameter diameter 4.467 km 0.102 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.295 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Menzies, K. (2013) Posting on CALL web site. http://www.minorplanet.info/call.html]
[Chang, C.-K.; Ip, W.-H.; Cheng, Y.-C.; Ngeow, C.-C.; et al. (2014) Astrophys. J. 788, A17.]
geometric albedo albedo 0.646   0.095 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
SMASSII spectral type spec_B Cb   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)

2762 Fowler (1981 AT)          Discovered 1981-Jan-14 by Bowell, E. at Flagstaff (AM)
Discovered at the Anderson Mesa station, which is operated by the Lowell Observatory.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1981 AT = 1930 YM = 1935 FH = 1942 EE = 1949 AD = 1956 AD = 1974 DB2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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