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27037 (1998 RB55)
Classification: Main-belt Asteroid          SPK-ID: 2027037
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09449077180867772 3.1948e-08  
a 2.250730139558207 7.0966e-09 au
q 2.038056911538299 7.2538e-08 au
i 5.260037155810195 3.4538e-06 deg
node 245.2810655714288 3.8923e-05 deg
peri 278.3806534498051 4.3226e-05 deg
M 356.9357629755048 1.8323e-05 deg
tp 2459010.997923937850
(2020-Jun-10.49792394)
6.2773e-05 TDB
period 1233.342129677029
3.38
5.8331e-06
1.597e-08
d
yr
n .2918898100839805 1.3805e-09 deg/d
Q 2.463403367578115 7.7671e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1732  
   data-arc span      12467 days (34.13 yr)  
   first obs. used      1985-12-17  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50574  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 00:56:00  

Additional Information
 Earth MOID = 1.05321 au 
 Jupiter MOID = 2.53401 au 
 T_jup = 3.616 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456857.5 (2014-Jul-19.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09439066254303219 3.2006e-08  
q 2.03841678957929 7.2661e-08 au
tp 2456544.785043764606
(2013-Sep-09.28504376)
6.413e-05 TDB
node 245.3238622750131 3.8946e-05 deg
peri 278.5432332041461 4.3244e-05 deg
i 5.257938111239864 3.453e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1732  
   data-arc span      12467 days (34.13 yr)  
   first obs. used      1985-12-17  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50574  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 00:56:00  

Additional Information
 Jupiter MOID = 2.53401 au 
 T_jup = 3.616 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.024371119768532E-15 -2.316513499459865E-15 -4.36182922538162E-14 -4.547216104930986E-15 -4.826428786623027E-15 -5.268363334912045E-16
q -2.316513499459865E-15 5.279608887592217E-15 1.227893277936379E-14 9.914661656929066E-15 -1.147501961859203E-14 1.250101656919007E-15
tp -4.36182922538162E-14 1.227893277936379E-14 4.112720462870397E-9 2.953703062220418E-12 1.216227782263918E-9 -1.142855834466479E-12
node -4.547216104930986E-15 9.914661656929066E-15 2.953703062220418E-12 1.516823361958764E-9 -1.509305880880702E-9 7.044893315054964E-12
peri -4.826428786623027E-15 -1.147501961859203E-14 1.216227782263918E-9 -1.509305880880702E-9 1.870010792957358E-9 -7.333088847662263E-12
i -5.268363334912045E-16 1.250101656919007E-15 -1.142855834466479E-12 7.044893315054964E-12 -7.333088847662263E-12 1.192300964778786E-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 14.7   n/a MPO358882  
diameter diameter 2.822 km 0.047 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.385   0.113 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

27037 (1998 RB55)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20010804/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
1900-May-25 23:10 < 00:01 Juno 0.0236573445050827 0.0236451318963431 0.0236695585609867 6.8768370804209 6.87683700563991 2415165.465431401 0.300385829125591 675.334141577974 36.3220565639634 -25.6789526361602 42468.0631123183 T 26 CATAB v2.0f-lin.ifort 2020-Feb-23 00:56:13 2020-Feb-23 00:56
1938-Mar-26 15:02 00:02 Amphi 0.0411499815346205 0.0411411389616573 0.0411588241299244 3.5372671606231 3.53726712112869 2428984.126445475 1.71019043501 443.281786952307 23.5346999109008 6.22482371826317 31518.9562592785 T 26 CATAB v2.0f-lin.ifort 2020-Feb-23 00:56:13 2020-Feb-23 00:56
1950-Sep-24 05:31 < 00:01 Iris 0.0322425047708882 0.0322401849905786 0.0322448259244202 5.81721844174784 5.81721841109795 2433548.729867918 0.24984936577549 372.665606387608 40.5930065524042 -72.9956164000564 113660.639002873 T 26 CATAB v2.0f-lin.ifort 2020-Feb-23 00:56:13 2020-Feb-23 00:56
2005-Jan-30 08:53 < 00:01 Juno 0.0399577338244957 0.0399568433775119 0.0399586242756574 6.91895652586308 6.91895648185783 2453400.870155729 0.224646546584477 56.9302914801135 36.427401721638 -54.5634370856487 146855.537778544 T 26 CATAB v2.0f-lin.ifort 2020-Feb-23 00:56:13 2020-Feb-23 00:56

Alternate Designations
 1998 RB55 = 1985 YA1 = 2000 AY236 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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