ASTROSAT CZTI

Data Quality Report

Orbit 29580

Creation date: 2024-06-27T20:05:41.351840
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A10_093T01_9000004266_29580cztM0_level2.evt modeM0/AS1A10_093T01_9000004266_29580cztM0_level2_quad_clean.evt
Size (bytes)844,122,240136,157,760
Size805.0 MB 129.9 MB
Events in quadrant A5,078,101880,137
Events in quadrant B7,463,156872,495
Events in quadrant C5,477,165815,629
Events in quadrant D6,813,280805,599

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0224621
B0295031
C0232251
D0271671

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02180
B02180
C02180
D02180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A108341010.932250%
B108353062.824181%
C108356375.879096%
D108352532.335025%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 11348 10834 9 9 0.08% 0.08%
B 11349 10835 157 157 1.38% 1.45%
C 11349 10834 7 7 0.06% 0.06%
D 11349 10835 171 171 1.51% 1.58%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 12 96 112563 430.37 1274 1245 258.7
A 0 13 36967 138.11 1274 1245 258.7
A 13 254 19079 68.95 1274 1245 258.7
B 0 189 1899176 7895.65 1260 1226 240.4
B 4 171 441333 1830.89 1260 1226 240.4
B 0 156 52920 215.05 1260 1226 240.4
C 14 238 360290 1284.85 1198 1207 279.5
C 14 254 236290 841.16 1198 1207 279.5
C 3 233 123700 438.3 1198 1207 279.5
D 8 195 627358 2159.18 1227 1194 290.0
D 12 33 462317 1590.07 1227 1194 290.0
D 13 153 337428 1159.42 1227 1194 290.0

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter