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175691 (1995 SM38)
Classification: Main-belt Asteroid          SPK-ID: 2175691
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1397282319222257 4.0643e-08  
a 2.372370758241168 1.1518e-08 au
q 2.040883586728139 9.9956e-08 au
i 6.457796358720929 5.6428e-06 deg
node 346.9846686718796 4.03e-05 deg
peri 315.7648185362615 4.5495e-05 deg
M 7.193241511300982 2.065e-05 deg
tp 2459173.831756528693
(2020-Nov-20.33175653)
7.6524e-05 TDB
period 1334.664995549981
3.65
9.7197e-06
2.661e-08
d
yr
n .2697306074560331 1.9643e-09 deg/d
Q 2.703857929754196 1.3127e-08 au
  Orbit Determination Parameters
   # obs. used (total)      270  
   data-arc span      9016 days (24.68 yr)  
   first obs. used      1995-09-18  
   last obs. used      2020-05-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .64924  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:06:25  

Additional Information
 Earth MOID = 1.02976 au 
 Jupiter MOID = 2.53464 au 
 T_jup = 3.522 
[ 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 17.00   n/a E2021B55  

175691 (1995 SM38)          Discovered 1995-Sep-24 by Spacewatch at Kitt Peak
Reference: 20080221/Numbers.arcLast Updated: 2008-02-22

[ 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
1902-Jun-23 03:46 00:02 Hebe 0.0390070879756797 0.0389904171173968 0.0390237628870501 7.26064377746783 7.26064375551761 2415923.656916331 1.70716027501367 1041.79442877293 49.6152492279318 37.1196415312191 71101.9779807884 T 17 CATAB v2.0f-lin.ifort 2021-Apr-13 21:06:26 2021-Apr-13 21:06
1935-Jan-26 12:21 < 00:01 David 0.0497423494143083 0.0497312281117113 0.049753472329874 7.1544447120622 7.1544446696119 2427829.014521671 0.718018733010309 713.017985510086 48.6575616797787 -39.0632392808182 96685.5584510041 T 17 CATAB v2.0f-lin.ifort 2021-Apr-13 21:06:26 2021-Apr-13 21:06
1966-Nov-29 00:58 < 00:01 Amphi 0.0463338184236116 0.0463286667282265 0.0463389711653288 3.47742159099806 3.47742155531866 2439458.540564837 0.718391254455075 444.749101207592 75.622208891993 -55.945541178195 76387.1006678659 T 17 CATAB v2.0f-lin.ifort 2021-Apr-13 21:06:26 2021-Apr-13 21:06
1999-Feb-27 16:52 < 00:01 Hebe 0.0121108839891411 0.0121080170998119 0.0121137508791765 8.88098579311557 8.88098573531654 2451237.202642544 0.333696329210818 143.023536101602 43.6560684871556 -2.0345645134534 12742.7367224743 T 17 CATAB v2.0f-lin.ifort 2021-Apr-13 21:06:26 2021-Apr-13 21:06
2125-Apr-26 19:15 00:01 Hebe 0.0309158719739655 0.0308969696346826 0.0309347782479723 7.29081220180326 7.29081217422289 2497316.302092789 1.21498221312858 1091.56992318931 50.4430892660694 -30.3316771126746 46435.7038981801 T 17 CATAB v2.0f-lin.ifort 2021-Apr-13 21:06:26 2021-Apr-13 21:06
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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