ASTROSAT CZTI

Data Quality Report

Orbit 09210

Creation date: 2024-06-27T15:42:46.770083
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/AS1A02_178T01_9000001286_09210cztM0_level2.evt modeM0/AS1A02_178T01_9000001286_09210cztM0_level2_quad_clean.evt
Size (bytes)181,736,64018,947,520
Size173.3 MB 18.1 MB
Events in quadrant A1,613,18098,096
Events in quadrant B1,240,859106,506
Events in quadrant C1,205,423103,093
Events in quadrant D1,276,73591,184

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A06814
B06814
C06812
D06822

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A094423182
B075222279
C073932199
D083292910

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A23102149.264069%
B24531556.318793%
C24591455.896706%
D23811526.383872%

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 3464 2908 24 24 0.69% 0.83%
B 3464 3040 0 0 0.00% 0.00%
C 3463 3038 0 0 0.00% 0.00%
D 3462 2967 29 29 0.84% 0.98%

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 8 5 427385 6925.53 290 283 61.7
A 1 162 30097 483.44 290 283 61.7
A 15 174 17419 277.86 290 283 61.7
B 8 234 12010 183.92 313 304 63.6
B 4 80 9853 150.03 313 304 63.6
B 12 111 7029 105.66 313 304 63.6
C 13 61 2410 28.53 308 309 73.6
C 3 233 1092 10.63 308 309 73.6
C 8 222 1082 10.5 308 309 73.6
D 1 52 146518 1984.27 293 284 73.7
D 2 234 12237 162.19 293 284 73.7
D 7 71 7263 94.7 293 284 73.7

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