ASTROSAT CZTI

Data Quality Report

Orbit 05824

Creation date: 2024-06-27T14:59:34.070784
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/AS1G06_052T01_9000000754_05824cztM0_level2.evt modeM0/AS1G06_052T01_9000000754_05824cztM0_level2_quad_clean.evt
Size (bytes)298,661,76060,275,520
Size284.8 MB 57.5 MB
Events in quadrant A2,198,890384,063
Events in quadrant B2,194,290378,691
Events in quadrant C2,135,222378,179
Events in quadrant D2,210,564368,905

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0942
B0940
C0942
D0940

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A09809100
B0967883
C0967894
D0989083

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4480992.209821%
B4486851.894784%
C4480681.517857%
D4487751.671495%

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 4717 4524 3 3 0.06% 0.07%
B 4717 4527 4 4 0.08% 0.09%
C 4717 4525 1 1 0.02% 0.02%
D 4717 4526 3 3 0.06% 0.07%

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 15 223 29104 246.26 561 549 116.0
A 13 210 7173 57.12 561 549 116.0
A 12 194 5594 43.51 561 549 116.0
B 15 204 28265 257.49 550 536 107.7
B 0 214 12461 110.74 550 536 107.7
B 12 111 10000 87.88 550 536 107.7
C 1 16 21180 162.4 539 541 127.1
C 9 16 6846 49.61 539 541 127.1
C 13 61 4373 30.15 539 541 127.1
D 12 233 26808 190.8 549 532 137.7
D 8 195 25075 178.22 549 532 137.7
D 2 63 19286 136.18 549 532 137.7

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