ASTROSAT CZTI

Data Quality Report

Orbit 06282

Creation date: 2024-06-27T15:05:05.942147
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/AS1C02_018T02_9000000824_06282cztM0_level2.evt modeM0/AS1C02_018T02_9000000824_06282cztM0_level2_quad_clean.evt
Size (bytes)367,185,60069,350,400
Size350.2 MB 66.1 MB
Events in quadrant A2,864,689446,173
Events in quadrant B2,661,680454,968
Events in quadrant C2,095,762452,763
Events in quadrant D3,190,668428,538

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0115121
B0108971
C093971
D0124991

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0920
B0920
C0920
D0920

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A45172004.427718%
B45171834.051362%
C4517831.837503%
D45172415.335400%

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 5742 4517 2 2 0.03% 0.04%
B 5742 4517 71 71 1.24% 1.57%
C 5742 4517 0 0 0.00% 0.00%
D 5742 4517 147 147 2.56% 3.25%

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 15 647360 5732.04 551 538 112.8
A 14 111 77737 684.12 551 538 112.8
A 13 251 12586 106.76 551 538 112.8
B 3 64 326009 3056.81 553 541 106.5
B 4 81 98027 915.59 553 541 106.5
B 0 219 52336 486.46 553 541 106.5
C 9 54 8881 66.84 534 537 124.8
C 13 61 4313 30.25 534 537 124.8
C 1 16 2867 18.66 534 537 124.8
D 12 220 505724 3812.9 534 517 132.5
D 2 152 300904 2267.08 534 517 132.5
D 11 241 176388 1327.33 534 517 132.5

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