ASTROSAT CZTI

Data Quality Report

Orbit 30038

Creation date: 2024-06-27T20:10:20.623528
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_082T06_9000004318_30038cztM0_level2.evt modeM0/AS1A10_082T06_9000004318_30038cztM0_level2_quad_clean.evt
Size (bytes)193,815,36019,379,520
Size184.8 MB 18.5 MB
Events in quadrant A1,263,026107,014
Events in quadrant B1,876,216104,717
Events in quadrant C1,264,594103,989
Events in quadrant D1,307,979104,959

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050601
B071841
C050581
D052161

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0460
B0460
C0460
D0460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A22981386.005222%
B22981908.268059%
C22981386.005222%
D22981165.047868%

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 3173 2298 0 0 0.00% 0.00%
B 3173 2298 2 2 0.06% 0.09%
C 3173 2299 0 0 0.00% 0.00%
D 3173 2299 9 9 0.28% 0.39%

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 8 192 10717 154.06 324 316 67.5
A 13 254 4346 59.69 324 316 67.5
A 3 137 3422 46.01 324 316 67.5
B 6 159 605751 9570.82 313 304 63.3
B 0 183 18049 280.51 313 304 63.3
B 5 255 11913 183.51 313 304 63.3
C 14 238 48733 656.55 307 307 73.8
C 3 233 13213 174.98 307 307 73.8
C 2 114 5817 74.7 307 307 73.8
D 8 195 48210 615.86 315 307 77.8
D 2 250 36732 468.3 315 307 77.8
D 2 120 13563 170.43 315 307 77.8

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