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101903 (1999 RR)
Classification: Main-belt Asteroid          SPK-ID: 2101903
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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1656710431404861 4.6732e-08  
a 3.151998532098808 2.3556e-08 au
q 2.629803647308718 1.4634e-07 au
i 6.970005351395395 4.4819e-06 deg
node 85.29806019271847 4.0914e-05 deg
peri 332.5346488759515 4.2869e-05 deg
M 279.9309218338063 1.5615e-05 deg
tp 2459851.110816325421
(2022-Sep-28.61081633)
9.1662e-05 TDB
period 2043.983740357973
5.60
2.2913e-05
6.273e-08
d
yr
n .1761266456732926 1.9744e-09 deg/d
Q 3.674193416888899 2.7459e-08 au
  Orbit Determination Parameters
   # obs. used (total)      837  
   data-arc span      7235 days (19.81 yr)  
   first obs. used      1999-08-12  
   last obs. used      2019-06-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53188  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:39:17  

Additional Information
 Earth MOID = 1.6443 au 
 Jupiter MOID = 1.6742 au 
 T_jup = 3.175 
[ 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 14.22   n/a MPCxxxxx  
diameter diameter 7.690 km 0.353 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.075   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

101903 (1999 RR)          Discovered 1999-Sep-03 by Sarounova, L. at Ondrejov
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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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
1937-Mar-31 16:09 00:03 Jupiter 1.75011305299284 1.75011214940003 1.75011395659022 2.43153172683358 2.22359693822205 2428624.173014210 2.67059656257047 168.310250522439 10.0261587365998 82.7793307210747 2664493.81895207 T 18 CATAB v2.0f-lin.ifort 2021-Apr-13 15:39:21 2021-Apr-13 15:39
1947-Sep-12 14:10 00:02 Jupiter 1.71967466705919 1.71967412506344 1.71967520905514 2.08504496156317 1.83366198276125 2432441.090587814 2.19289527022858 109.539992217409 34.2764105976843 79.9809329623014 2089905.29590696 T 18 CATAB v2.0f-lin.ifort 2021-Apr-13 15:39:21 2021-Apr-13 15:39
1958-Feb-21 05:12 00:02 Jupiter 1.98378102384745 1.98378012411479 1.98378192358249 2.46875426689592 2.28927937163571 2436255.716889887 1.82779569835298 157.186063804355 14.963865911389 82.6834032893816 2306439.30316887 T 18 CATAB v2.0f-lin.ifort 2021-Apr-13 15:39:21 2021-Apr-13 15:39
2021-Jun-01 02:37 < 00:01 Jupiter 1.93054022575147 1.93053973284357 1.93054071865947 3.18218749624793 3.04118716073492 2459366.608773890 0.355547193487212 51.342530351729 15.330376226911 75.9152849635341 3255553.07414681 T 18 CATAB v2.0f-lin.ifort 2021-Apr-13 15:39:21 2021-Apr-13 15:39
2031-Oct-29 00:18 < 00:01 Jupiter 1.69271102825074 1.69271068576274 1.69271137073875 2.22915684150174 1.99207232365045 2463168.512504540 0.674145168256882 69.8730100548165 16.2436328119472 81.9944057271667 2707299.03676565 T 18 CATAB v2.0f-lin.ifort 2021-Apr-13 15:39:21 2021-Apr-13 15:39
2042-Apr-13 15:25 00:01 Jupiter 1.76905113604526 1.76905045875809 1.76905181333333 2.13096197938779 1.89298653519126 2466988.142526913 1.07212383379087 131.276335913712 22.4578200552155 79.8423931942781 1944590.95083225 T 18 CATAB v2.0f-lin.ifort 2021-Apr-13 15:39:21 2021-Apr-13 15:39
2115-Dec-30 17:37 00:04 Jupiter 1.844180466235 1.84417917320555 1.84418175926968 2.73219054774595 2.55856904839217 2493911.233943683 3.66807324572665 183.4274873001 10.4622274134149 78.7060946618008 2512421.6725158 T 18 CATAB v2.0f-lin.ifort 2021-Apr-13 15:39:21 2021-Apr-13 15:39
2126-May-30 18:42 00:04 Jupiter 1.67101869829794 1.67101828885059 1.67101910774577 2.13488218768947 1.88253609342397 2497715.279511925 3.89599389789536 196.58936327271 26.371306976796 -88.1100130313869 2393930.73621509 T 18 CATAB v2.0f-lin.ifort 2021-Apr-13 15:39:21 2021-Apr-13 15:39
2136-Nov-13 19:01 00:04 Jupiter 1.84511462868824 1.84511269035389 1.84511656703664 2.26900616749394 2.05676066831912 2501535.292043960 4.34002708239923 303.468833130707 19.0406699123743 77.9582366520948 1844346.18022024 T 18 CATAB v2.0f-lin.ifort 2021-Apr-13 15:39:21 2021-Apr-13 15:39

Alternate Designations
 1999 RR = 2000 VQ37 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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