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2615 Saito (1951 RJ)
Classification: Main-belt Asteroid          SPK-ID: 2002615
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1513832194362877 1.8529e-08  
a 3.178977055351403 1.7413e-08 au
q 2.697733274198218 5.9798e-08 au
i 4.245774290121632 1.1907e-06 deg
node 322.6167274592053 8.1168e-06 deg
peri 343.8323641277844 1.0335e-05 deg
M 134.3738194920969 1.001e-05 deg
tp 2458427.745259358591
(2018-Nov-05.24525936)
5.4471e-05 TDB
period 2070.282051090085
5.67
1.701e-05
4.657e-08
d
yr
n .1738893499127067 1.4287e-09 deg/d
Q 3.660220836504588 2.0049e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2433  
   data-arc span      25384 days (69.50 yr)  
   first obs. used      1951-09-04  
   last obs. used      2021-03-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47046  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-16 14:10:55  

Additional Information
 Earth MOID = 1.68119 au 
 Jupiter MOID = 1.59894 au 
 T_jup = 3.178 
[ 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 12.57   n/a E2021B10  
diameter diameter 15.555 km 0.244 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 14.960 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.088   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

2615 Saito (1951 RJ)          Discovered 1951-Sep-04 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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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
1909-Feb-09 20:57 00:03 Jupiter 1.8949010555565 1.89489970012345 1.89490241099084 2.59361932309808 2.41513133233876 2418347.372868921 2.58810084097789 110.309049483307 8.91515957093227 -65.3484685764093 4189335.4543296 T 41 CATAB v2.0f-lin.ifort 2021-Mar-16 14:12:14 2021-Mar-16 14:12
1919-Dec-10 05:45 00:02 Jupiter 1.66818662038022 1.66818593261246 1.66818730814778 2.09229988919423 1.83363516436044 2422302.739247777 2.1968943826583 30.9853473117771 8.01902621543447 -63.1767447681641 2637900.96763086 T 41 CATAB v2.0f-lin.ifort 2021-Mar-16 14:12:14 2021-Mar-16 14:12
1930-Oct-08 04:21 00:02 Jupiter 1.61580150519742 1.61580126723638 1.61580174315837 1.92789315790905 1.63350789914686 2426257.681532213 1.91328320349654 25.9477221125737 8.05561690995116 -77.4134345746007 5985102.26264242 T 41 CATAB v2.0f-lin.ifort 2021-Mar-16 14:12:14 2021-Mar-16 14:12
1941-Jul-12 23:54 00:02 Jupiter 1.76946634501162 1.7694656854565 1.76946700456664 2.46589048985991 2.2634574594119 2430188.495609730 1.70010972908761 35.4940039309402 2.96819521369432 -77.5648506177464 4188702.57715561 T 41 CATAB v2.0f-lin.ifort 2021-Mar-16 14:12:14 2021-Mar-16 14:12
2028-Feb-20 00:13 < 00:01 Jupiter 1.96157786444027 1.96157769116064 1.9615780377199 2.70077016182568 2.53585212791076 2461821.509343140 0.367825672450491 21.1836090588646 4.57583960129319 -89.8502306222252 7987270.10785923 T 41 CATAB v2.0f-lin.ifort 2021-Mar-16 14:12:14 2021-Mar-16 14:12
2038-Dec-16 12:01 < 00:01 Jupiter 1.71570170620548 1.71570147653839 1.71570193587248 2.16636708723827 1.92503739979487 2465774.000915674 0.674471596120104 33.1892248688214 2.40921393438128 -78.7392340078597 6015709.11649108 T 41 CATAB v2.0f-lin.ifort 2021-Mar-16 14:12:14 2021-Mar-16 14:12
2049-Oct-17 06:16 00:01 Jupiter 1.6182851004857 1.61828495103605 1.61828524993526 1.99485194181014 1.71248921829939 2469731.760856738 1.03276952132724 23.1413982626077 5.22347596698043 -68.9176780349982 8175033.70563281 T 41 CATAB v2.0f-lin.ifort 2021-Mar-16 14:12:14 2021-Mar-16 14:12
2060-Jul-30 22:04 00:01 Jupiter 1.73220677051473 1.73220631088381 1.73220723014564 2.31908219641565 2.09765891893707 2473671.419623679 1.45918930142622 27.9858604434769 3.51043076189098 -76.2655507825607 5883235.31943131 T 41 CATAB v2.0f-lin.ifort 2021-Mar-16 14:12:14 2021-Mar-16 14:12
2071-Apr-25 18:30 00:02 Jupiter 1.96686598100595 1.96686528845731 1.96686667355509 3.59708190715218 3.47529951310874 2477592.270789301 1.77013819572603 63.7379976468259 7.38936150302781 -67.3393533914111 6315257.54873757 T 41 CATAB v2.0f-lin.ifort 2021-Mar-16 14:12:14 2021-Mar-16 14:12
2157-Dec-18 08:53 00:04 Jupiter 1.7677780842718 1.76777678740786 1.76777938113961 2.20929269630362 1.98057660001498 2509239.870199979 3.57070067966038 159.285335943601 4.62318772917157 -75.095398657421 4264674.59209953 T 41 CATAB v2.0f-lin.ifort 2021-Mar-16 14:12:14 2021-Mar-16 14:12
2168-Oct-19 11:54 00:04 Jupiter 1.63345526448368 1.63345499289365 1.63345553607371 2.04323744658244 1.77136282460059 2513197.995931278 3.89045746284643 29.0442967982264 12.6057713446435 -86.7043275673603 8993602.57469054 T 41 CATAB v2.0f-lin.ifort 2021-Mar-16 14:12:14 2021-Mar-16 14:12
2179-Aug-11 11:36 00:05 Jupiter 1.70413993579673 1.70413871231988 1.70414115927417 2.26184470696389 2.03023772782692 2517145.983643339 4.5072079163608 87.9241120339419 4.14405592430914 -76.0064167945401 6847106.76152924 T 41 CATAB v2.0f-lin.ifort 2021-Mar-16 14:12:14 2021-Mar-16 14:12
2190-May-09 23:58 00:05 Jupiter 1.92093615016739 1.92093418735278 1.92093811298462 3.27591715280215 3.13843082755781 2521070.498468416 4.98607465637972 152.450229372505 6.9689297334334 -64.4733145621343 5706362.4235157 T 41 CATAB v2.0f-lin.ifort 2021-Mar-16 14:12:14 2021-Mar-16 14:12

Alternate Designations
 1951 RJ = 1955 FC2 = 1967 JS = 1979 OD13 = 1979 QB8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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