ASTROSAT CZTI

Data Quality Report

Orbit 32382

Creation date: 2024-06-27T20:39:35.468978
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/AS1T04_059T01_9000004704_32382cztM0_level2.evt modeM0/AS1T04_059T01_9000004704_32382cztM0_level2_quad_clean.evt
Size (bytes)260,133,12042,117,120
Size248.1 MB 40.2 MB
Events in quadrant A1,291,151286,958
Events in quadrant B2,732,544277,095
Events in quadrant C1,578,014269,488
Events in quadrant D2,111,322267,760

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A053012
B097871
C063111
D079041

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0520
B0520
C0520
D0520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2405261.081081%
B240533213.804574%
C24052098.690229%
D24051315.446985%

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 3645 2406 0 0 0.00% 0.00%
B 3645 2406 136 136 3.73% 5.65%
C 3645 2406 45 45 1.23% 1.87%
D 3645 2406 50 50 1.37% 2.08%

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 13 254 4582 62.33 332 326 68.3
A 12 96 4525 61.49 332 326 68.3
A 13 6 3736 49.94 332 326 68.3
B 4 80 711556 11615.73 317 310 61.2
B 6 159 614359 10028.35 317 310 61.2
B 5 172 97310 1584.16 317 310 61.2
C 3 233 214518 2965.89 304 306 72.2
C 14 238 72510 999.71 304 306 72.2
C 0 10 53574 737.53 304 306 72.2
D 8 195 441685 5773.86 316 308 76.4
D 14 52 115969 1513.01 316 308 76.4
D 15 0 110324 1439.17 316 308 76.4

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