+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   120469 (1992 DG9) Classification: Main-belt Asteroid          SPK-ID: 2120469 [ 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 18 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2291297653605341 2.5476e-08   a 2.305185719588954 7.3235e-09 au q 1.776999056547083 5.774e-08 au i 3.522449105798116 4.6062e-06 deg node 195.7550346549641 5.3872e-05 deg peri 251.6838360472183 5.6055e-05 deg M 126.6245650451064 1.2368e-05 deg tp 2458750.851888819450 (2019-Sep-24.35188882) 4.357e-05 TDB period 1278.372170260449 3.50 6.092e-06 1.668e-08 d yr n .2816081328856334 1.342e-09 deg/d Q 2.833372382630826 9.0015e-09 au   Orbit Determination Parameters    # obs. used (total)      801      data-arc span      17002 days (46.55 yr)      first obs. used      1973-11-02      last obs. used      2020-05-21      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .50785      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 17:06:35   Additional Information  Earth MOID = .796758 au   Jupiter MOID = 2.39949 au   T_jup = 3.551  [ hide covariance matrix ] Orbital Elements at Epoch 2457015.5 (2014-Dec-24.0) TDB Reference: JPL 18 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2281220501531742 2.5458e-08   q 1.780237947369398 5.7692e-08 au tp 2457472.107159640554 (2016-Mar-24.60715964) 4.3708e-05 TDB node 195.7712939337656 5.3881e-05 deg peri 251.7661547450366 5.6086e-05 deg i 3.520294965829283 4.6065e-06 deg   Orbit Determination Parameters    # obs. used (total)      801      data-arc span      17002 days (46.55 yr)      first obs. used      1973-11-02      last obs. used      2020-05-21      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .50785      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 17:06:35   Additional Information  Jupiter MOID = 2.39949 au   T_jup = 3.551  Orbit Covariance (6×6)   e q tp node peri i e 6.48132557349169E-16 -1.461944796600668E-15 1.39248795711595E-14 -3.05751117295197E-15 6.796179298927613E-15 -1.856236112401363E-16 q -1.461944796600668E-15 3.328340644055403E-15 -3.749071959879713E-14 6.91915491636007E-15 -2.192817334477543E-14 3.88668273013553E-16 tp 1.39248795711595E-14 -3.749071959879713E-14 1.910400617304961E-9 -4.12651630857993E-11 6.876873232195803E-10 -3.195327144166541E-12 node -3.05751117295197E-15 6.91915491636007E-15 -4.12651630857993E-11 2.903115343427684E-9 -2.910951021546552E-9 -5.030496108412843E-11 peri 6.796179298927613E-15 -2.192817334477543E-14 6.876873232195803E-10 -2.910951021546552E-9 3.145615900538267E-9 4.91868723174544E-11 i -1.856236112401363E-16 3.88668273013553E-16 -3.195327144166541E-12 -5.030496108412843E-11 4.91868723174544E-11 2.122002466317996E-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 16.55   n/a E2021B55   120469 (1992 DG9)          Discovered 1992-Feb-29 by UESAC at La Silla Reference: 20060314/Numbers.arc Last Updated: 2006-03-23 [ show close-approach data ] Alternate Designations  1992 DG9 = 1973 VC = 1996 HP26 = 2001 SV154  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-14 22:41 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin