Predictions of stellar occultations by the main planetary satellites
Short Name:
voccdb.epn_core
Date:
26 Feb 2025 14:03:55
Publisher:
Paris Astronomical Data Centre
Description:
The VOccDB database provides prediction and parameters of stellar
occultations by the main planetary satellites. Observations of a
stellar occultations help to better determine the size and the shape
of the occulting body, as well as its astrometric position at the
milli-arcsecond level precision. Only the main moons of giant planets
Jupiter, Saturn, Uranus and Neptune are considered in the event
prediction database. Predictions are provided over period 2023-2032,
up to visual magnitude 12 for the biggest satellites, and magnitude 14
for other satellites. For each stellar occultation event prediction,
the database provides circumstances and observational data, date and
timing of the occultation, star position and magnitude, excepted
duration, etc.
PVO Spacecraft VSO Ephemeris and Spacecraft Orientation ASCII Data
Collection
Short Name:
PVO-PHEM-ASC
Date:
15 Dec 2022 19:27:35
Publisher:
Planetary Data System
Description:
This collection includes Pioneer Venus Orbiter (PVO) ephemeris,
spacecraft position and orientation data in Venus Solar Orbital (VSO)
coordinates. This collection is sampled every 12 seconds near
periapsis, and at 1 minute or 10 minute rates in the solar wind, the
lowest rates near apoapsis. Planetocentric and heliocentric position
vectors and solar zenith angle (Sun-Venus-PVO) are also provided. The
VSO parameters are derived from the PVO Supplemental Experimenter Data
Records (SEDR), other parameters are taken directly from the SEDR
dataset. The original data were all binary and contained a
non-standard time representation. No software was provided to convert
these data to ASCII. PDS created ASCII versions of these files in
response to user concerns regarding the ease of use of these data.
PVO Spacecraft VSO Ephemeris and Spacecraft Orientation Original
Binary Data Collection
Short Name:
PVO-PHEM-BIN
Date:
15 Dec 2022 19:28:02
Publisher:
Planetary Data System
Description:
This collection includes Pioneer Venus Orbiter (PVO) ephemeris,
spacecraft position and orientation data in Venus Solar Orbital (VSO)
coordinates. This collection is sampled every 12 seconds near
periapsis, and at 1 minute or 10 minute rates in the solar wind, the
lowest rates near apoapsis. Planetocentric and heliocentric position
vectors and solar zenith angle (Sun-Venus-PVO) are also provided. The
VSO parameters are derived from the PVO Supplemental Experimenter Data
Records (SEDR), other parameters are taken directly from the SEDR
dataset. The original data files submitted to the PDS are IGPP
flatfiles. An IGPP flatfile is a collection of 2 files, each of which
could be considered a table. The data file (.FFD) is a binary table of
data values. The header file (.FFH) is an ASCII table which describes
the data file (.FFD) and is used by the UCLA/IGPP Data Flow System (a
software package).
Quasi Thermal Noise pectroscopy on High Frequency Receiver Data Data
Collection
Short Name:
CO-RPWS-HFR-QTN
Date:
15 Dec 2022 19:29:14
Publisher:
Planetary Data System
Description:
This collection contains RPWS-HFR Quasi Thermal Noise (QTN)
spectroscopy supplied CDF files containing a time series of thermal
plasma moments (density and temperature). QTN data products are
generated only when the QTN analysis is applicable.
