Field
Report
April
21, 2003
Salar Grande, Atacama Desert, Chile
Agenda
- Rover science operations at Pampa Nevada
Status
and Progress
- Conducted remote science investigation. Today was the first day of science
operations in which a team of biologists and geologists located at NASA Ames
Research Center are using Hyperion to remotely investigate several locations
around Salar Grande. The remote team is behaving as they would during a planetary
mission. Each day they uplink a planned traverse and points where each (or
all) instrument is to acquire a measurements. The traverse is give to the rover
and the image capture is commanded at the appropriate locations. Several additional
instruments including a visible and near infra-red spectrometer and a fluorescence
microscope are also in the field (although not integrated with the rover) and
are being manually deployed when the science plan calls for them. All the data
is accumulated and then transmitted to NASA in one single downlink.
- Testing back-up behavior. We quickly implemented a new feature of in the
Navigator. When the path forward is blocked, the Navigator now calls up prior
terrain images or maps, and evaluates paths behind it. Hyperion then backups
up a short distance and re-examines terrain. Terrain evaluation with greater
sensitivity to the arcs ahead then proceeds to search for a new path. This
is a simple approach that should eliminate many of the faults we have been
seeing. We will test the reliability of the approach.
- Debugged communication hardware. The usually reliable communication hardware
was behaving oddly today with the communication to the repeater sporatic. We've
temporarily removed the repeater and are communicating directly tot he
Upcoming
- Science operations during traverse from Pampa Nevada site to next site
- Collect sun sensor data set
Weather
Today: Clear, all day, not a single cloud
| Humidity |
Insolation |
Temperature |
Wind |
Vulture
Count: 3
Quote
of the Day
" But, ... I fight like a monkey."