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JPL Small-Body Database Browser
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40733 (1999 SM17)
Classification: Main-belt Asteroid          SPK-ID: 2040733
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .147833115551598 3.7496e-08  
a 2.417809228573336 8.6903e-09 au
q 2.060376957503935 9.1086e-08 au
i 7.50136211320344 4.0748e-06 deg
node 121.8514682346299 2.7563e-05 deg
peri 248.6634326822914 3.0281e-05 deg
M 162.4109581298481 1.2239e-05 deg
tp 2458380.995734601347
(2018-Sep-19.49573460)
4.6014e-05 TDB
period 1373.192659606186
3.76
7.4035e-06
2.027e-08
d
yr
n .2621627762729545 1.4134e-09 deg/d
Q 2.775241499642738 9.975e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1599  
   data-arc span      7987 days (21.87 yr)  
   first obs. used      1998-03-24  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51086  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 06:01:33  

Additional Information
 Earth MOID = 1.07323 au 
 Jupiter MOID = 2.70988 au 
 T_jup = 3.489 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456832.5 (2014-Jun-24.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1473353850020202 3.7627e-08  
q 2.062114549669502 9.1424e-08 au
tp 2457004.366897041274
(2014-Dec-12.86689704)
4.5517e-05 TDB
node 121.9520692204889 2.7526e-05 deg
peri 247.9464498392933 3.0267e-05 deg
i 7.505419386035861 4.0783e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1599  
   data-arc span      7987 days (21.87 yr)  
   first obs. used      1998-03-24  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51086  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 06:01:33  

Additional Information
 Jupiter MOID = 2.70988 au 
 T_jup = 3.489 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.415797027335901E-15 -3.428801501037538E-15 -5.368671959448917E-13 4.241549713510425E-15 -1.672528843197449E-13 -2.575958302943284E-15
q -3.428801501037538E-15 8.358389191698119E-15 1.30696630691621E-12 -9.764536720293235E-15 4.040096919883622E-13 6.4730644513205E-15
tp -5.368671959448917E-13 1.30696630691621E-12 2.071758323058034E-9 -2.71559196737506E-12 5.839369899949892E-10 1.15570377678539E-12
node 4.241549713510425E-15 -9.764536720293235E-15 -2.71559196737506E-12 7.577039088469263E-10 -7.51667282759911E-10 3.054536323283813E-11
peri -1.672528843197449E-13 4.040096919883622E-13 5.839369899949892E-10 -7.51667282759911E-10 9.161051071604319E-10 -2.994854771539634E-11
i -2.575958302943284E-15 6.4730644513205E-15 1.15570377678539E-12 3.054536323283813E-11 -2.994854771539634E-11 1.663248270929454E-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 14.5   n/a MPO359000  
diameter diameter 2.830 km 0.533 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.461   0.144 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

40733 (1999 SM17)          Discovered 1999-Sep-30 by LINEAR at Socorro
Reference: 20020526/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
1992-Jun-21 18:55 < 00:01 Juno 0.0445346336264527 0.0445318244186615 0.0445374428639359 5.39466948745191 5.39466943681313 2448795.288037037 0.355390369864252 152.014155292908 34.7908735779468 23.5760765813749 86436.5994305492 T 31 CATAB v2.0f-lin.ifort 2020-Feb-23 06:01:48 2020-Feb-23 06:01
2125-May-16 04:03 00:04 Hebe 0.0325655163083964 0.0325601229969215 0.0325709206295869 2.6156120980942 2.61561202511044 2497335.668995183 4.08475958088779 988.058342175844 34.5728901843227 -74.3297780116266 135479.648933637 T 31 CATAB v2.0f-lin.ifort 2020-Feb-23 06:01:48 2020-Feb-23 06:01

Alternate Designations
 1999 SM17 = 1998 HJ111 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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