Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
109988 (2001 SR57)
Classification: Main-belt Asteroid          SPK-ID: 2109988
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .256942322769946 7.0019e-08  
a 2.567000908176094 1.4381e-08 au
q 1.907429732276767 1.8401e-07 au
i 3.365548052890861 7.8276e-06 deg
node 180.1115544663713 8.355e-05 deg
peri 122.7709650273577 8.4344e-05 deg
M 290.8205207845909 1.2313e-05 deg
tp 2459489.177042898252
(2021-Oct-01.67704290)
5.2555e-05 TDB
period 1502.233561483979
4.11
1.2624e-05
3.456e-08
d
yr
n .2396431615097021 2.0138e-09 deg/d
Q 3.22657208407542 1.8076e-08 au
  Orbit Determination Parameters
   # obs. used (total)      434  
   data-arc span      10192 days (27.90 yr)  
   first obs. used      1992-04-29  
   last obs. used      2020-03-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60616  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:08:37  

Additional Information
 Earth MOID = .892796 au 
 Jupiter MOID = 2.03942 au 
 T_jup = 3.382 
[ hide covariance matrix ]
Orbital Elements at Epoch 2455981.5 (2012-Feb-24.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2592225775824603 7.0408e-08  
q 1.900631635403019 1.8552e-07 au
tp 2456481.748450041204
(2013-Jul-08.24845004)
4.4528e-05 TDB
node 180.2418818261339 8.3889e-05 deg
peri 122.3545979547732 8.4649e-05 deg
i 3.358349880813917 7.8251e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      434  
   data-arc span      10192 days (27.90 yr)  
   first obs. used      1992-04-29  
   last obs. used      2020-03-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60616  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:08:37  

Additional Information
 Jupiter MOID = 2.03942 au 
 T_jup = 3.382 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.957314431453797E-15 -1.304407101783492E-14 1.614620853448806E-12 9.065681813292482E-15 3.810827118297355E-13 -1.179607813377262E-14
q -1.304407101783492E-14 3.441815962709821E-14 -4.143583315654888E-12 -2.196966011303867E-14 -9.94031650183719E-13 3.089902377108385E-14
tp 1.614620853448806E-12 -4.143583315654888E-12 1.982719425426616E-9 1.579766913342699E-11 5.163461653634373E-10 -6.164893351679719E-12
node 9.065681813292482E-15 -2.196966011303867E-14 1.579766913342699E-11 7.037381292612295E-9 -7.020247911247265E-9 -2.691738367082983E-10
peri 3.810827118297355E-13 -9.94031650183719E-13 5.163461653634373E-10 -7.020247911247265E-9 7.16553469596064E-9 2.671138289347163E-10
i -1.179607813377262E-14 3.089902377108385E-14 -6.164893351679719E-12 -2.691738367082983E-10 2.671138289347163E-10 6.123216448077607E-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 16.17   n/a E2021B55  

109988 (2001 SR57)          Discovered 2001-Sep-17 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ 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
2110-Apr-13 09:55 00:11 Hygie 0.0271672534099265 0.0271622002293255 0.027172311088667 2.79711314437188 2.7971126359237 2491823.912879917 11.4137257141988 614.137633464927 49.6778699803141 66.2686731016795 74665.4291282678 T 16 CATAB v2.0f-lin.ifort 2020-Nov-12 19:08:38 2020-Nov-12 19:08

Alternate Designations
 2001 SR57 = 1992 HG3 = 2000 GX16 = 2001 UK181 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-13 17:54 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin