Upcoming Events …
& Other Stuff
June 2012 – January 2013
Shawn M. Brooks
UVIS Team Meeting
Braunschweig, Germany
18-20 June 2012
The New Investigation Scientist
• Sarah Milkovich now with MSL (saving JPL!)
• PhD with L. Esposito at Univ. of Colo. (2003)
– Jupiter’s main ring with Galileo SSI & NIMS
• Science Planning (now SPST!) team
member since Nov. 2006:
– SIP lead: support sequence execution
– Saturn TWT lead: help integrate segments
• Affiliated with CIRS’ Rings group:
– analyze thermal IR ring observations
– observation planning in the Rings & XD TWTs
Tour Status
• Sequence S73 finished executing on 19 June (early
morning CEDT).
• Sequence S74 has just commenced executing,
starting with Rev 168:
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–
–
–
–
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period = 23.9 days
inclination = 21.1˚
eccentricity = 0.810
apoapse = 47.98 RSaturn
T84 occurred June 7
T85, T86 will occur July 24, September 26
• During the next 6 months, we will:
– Increase inclination during IN-1; maximum in May 2013
Saturn, Ring Solar Occultations
• Saturn
Rev 171
egress – 34.68° N
Sep 02 (DOY 246) UVIS PIE
• Saturn
Rev 175
ingress – 62.19° S
Nov 26 (DOY 331) UVIS prime
• Saturn
Rev 178
ingress – 68.25° S
Jan 04 (DOY 004) UVIS prime
• Revs 172, 179 – Solar ring occultations, ridealong with VIMS.
Ring Stellar Occultations
12 UVIS stellar occultations through January 2013:
• Rev 168
a CMa, k CMa
• Rev 169
a CMa, z CMa
• Rev 171
b CMa (atmospheric only), z Pup
• Rev 172
g Peg
• Rev 173
e CMa, g Col, a Vir
• Rev 174
e CMA
• Rev 175
a Lyr
Titan Flybys
June 2012 – January 2013
• T84
• T85
Jun 6
959 km
UVIS outbound EUVFUV
Jul 24
1012 km
RADAR
VIMS
• T86
Sep 24
956 km
UVIS inbound/outbound EUVFUV
RADAR
• T87
Nov 6
973 km
UVIS outbound rider w/CIRS
AACS
• T88
Nov 29
1014 km
UVIS inbound/outbound rider w/CIRS
VIMS
Icy Satellite Flybys
SOST Rev 177:
-Non-targeted: Rhea @ 22880km (Dec 22 2012)
-Additional observations of Enceladus, Dione
-UVIS riders with CIRS, ISS
PIES:
Rev 169 •UVIS_169DI_ICYEXO001_PIE: Dione occultation
Rev 170 –
•UVIS_170DI_ICYEXO001_PIE: Dione occultation
•UVIS_170MI_LOPHASE001_PIE: Mimas low phase albedo mapping
Rev 173 –
•UVIS_173EN_LOPHASE001_PIE: Enceladus low phase albedo mapping
Rev 177 •UVIS_177RH_ICYEXO001_PIE: Rhea occultation
plus riders …
Additional High-Priority UVIS
Observations
• Auroral stares, slews:
176(3), 178(2), 179
Revs 168(6), 169(3),
• Saturn EUVFUV: Revs 170/171, 174/175
• Titan EUVFUV: Rev 172
• Saturn system scans: Revs 169/170, 178/179
• And one RINGMAP during Rev 173 (DOY 293)
XXM Tour Timeline
Science Highlights Are a Pain …
… but they shouldn’t be overlooked.
•Science highlights are collected by TWT and OST chairs and
serve a number of purposes:
-They are used for outreach activities.
-They inform the RBOT process.
-They help guide SIP leads during DSN negotiations.
-They are useful during OTM decisions.
•How does this work in the various TWTs and OSTs?
•This information is collected at the same time that pointing
flexibility is requested to inform AACS analysts during RBOT.
•Though descriptions of pointing flexibility are inherently
subjective (“flexible”, “second preferred”, “significant science
impact …”), we should strive for consistency among us.
Useful Science Highlight Wording
• What makes for useful input for science highlights? Josh
recently provided some terrific examples:
Rev 169 URZETCMA: This is our single highest-priority
particle-tracking occultation of the entire mission, not just
solstice mission. The reason for its high priority is that it
achieves a velocity of only 100 m/s relative to the ring
particles, roughly 10 times better than our other particletracking occultations. This means we will have several
samples across the size of a ring particle at a sampling rate of
1000 Hz. I cannot overstate the priority of getting our full data
rate and coverage on this occultation.
• Note that this information can also be placed in CIMS!
Useful Science Highlight Wording (cont’d)
Rev 169 Alpha Canis Major (joint with VIMS): There are only
a handful of occultations throughout the tour that offer both
VIMS and UVIS the opportunity to get a decent signal, and this
is one of them. In work that I am currently doing on the selfgravity wakes where VIMS and UVIS data are both being used
we have found some puzzling but persistent differences in the
self-gravity wake parameters depending on whether we use
UVIS or VIMS data. A joint occultation …
•This type of language is what catches the attention of
a SIP lead and causes him to take notice of its priority.
•Please highlight that a particular observation is unique
or sensitive to changes or high-priority in any other
way.