ASTROSAT CZTI

Data Quality Report

Orbit 29287

Creation date: 2024-06-27T20:02:24.152968
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_050T01_9000004212_29287cztM0_level2.evt modeM0/AS1A10_050T01_9000004212_29287cztM0_level2_quad_clean.evt
Size (bytes)523,065,60050,391,360
Size498.8 MB 48.1 MB
Events in quadrant A2,177,356316,813
Events in quadrant B2,318,824319,728
Events in quadrant C5,908,246293,496
Events in quadrant D5,147,557295,219

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A091551
B096151
C0205931
D0183373

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0880
B0880
C0880
D0880

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A42631563.659395%
B42631964.597701%
C4263156236.640863%
D426296122.548099%

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 4513 4264 2 2 0.04% 0.05%
B 4513 4264 5 5 0.11% 0.12%
C 4513 4264 664 664 14.71% 15.57%
D 4512 4263 567 567 12.57% 13.30%

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 15 174 18559 156.5 559 545 115.1
A 13 254 8624 70.19 559 545 115.1
A 3 137 5492 42.98 559 545 115.1
B 0 230 64170 582.32 551 537 109.3
B 10 245 19675 175.14 551 537 109.3
B 0 156 14830 130.8 551 537 109.3
C 3 233 3883169 34036.84 477 480 114.1
C 14 238 103414 902.35 477 480 114.1
C 14 254 50539 438.83 477 480 114.1
D 1 52 1129646 9042.44 507 491 124.9
D 8 195 862748 6905.08 507 491 124.9
D 12 233 648852 5192.17 507 491 124.9

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