ASTROSAT CZTI

Data Quality Report

Orbit 05903

Creation date: 2024-06-27T15:00:39.058742
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_174T01_9000000766_05903cztM0_level2.evt modeM0/AS1A02_174T01_9000000766_05903cztM0_level2_quad_clean.evt
Size (bytes)228,677,76041,163,840
Size218.1 MB 39.3 MB
Events in quadrant A1,658,392250,436
Events in quadrant B1,769,473257,443
Events in quadrant C1,609,099250,581
Events in quadrant D1,646,713237,621

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A072862
B075531
C071891
D073801

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0720
B0720
C0720
D0720

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3531230.651374%
B3531130.368168%
C353140.113282%
D353180.226565%

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 4736 3532 11 11 0.23% 0.31%
B 4736 3532 3 3 0.06% 0.08%
C 4736 3532 0 0 0.00% 0.00%
D 4736 3532 1 1 0.02% 0.03%

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 15 234 38627 434.7 420 409 87.9
A 12 194 4084 41.8 420 409 87.9
A 0 226 4075 41.7 420 409 87.9
B 15 204 34039 402.67 427 416 83.5
B 4 80 24025 282.74 427 416 83.5
B 0 198 15932 185.82 427 416 83.5
C 1 16 3794 35.28 410 412 95.8
C 13 61 3238 29.48 410 412 95.8
C 8 222 1794 14.42 410 412 95.8
D 2 152 69507 687.23 408 396 100.6
D 1 20 9076 86.31 408 396 100.6
D 8 195 5992 55.65 408 396 100.6

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