ASTROSAT CZTI

Data Quality Report

Orbit 12524

Creation date: 2024-06-27T16:28:38.297717
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/AS1A04_230T01_9000001854_12524cztM0_level2.evt modeM0/AS1A04_230T01_9000001854_12524cztM0_level2_quad_clean.evt
Size (bytes)497,373,120102,680,640
Size474.3 MB 97.9 MB
Events in quadrant A3,793,059656,848
Events in quadrant B3,764,943664,553
Events in quadrant C3,429,257653,025
Events in quadrant D3,570,196617,488

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0161172
B0162021
C0155101
D0161441

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74331722.314005%
B74332433.269205%
C74331151.547155%
D74331021.372259%

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 7479 7435 0 0 0.00% 0.00%
B 7479 7435 25 25 0.33% 0.34%
C 7479 7435 0 0 0.00% 0.00%
D 7479 7435 33 33 0.44% 0.44%

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 1 162 100465 539.63 899 881 184.5
A 12 189 59503 317.66 899 881 184.5
A 1 178 55387 295.36 899 881 184.5
B 4 239 243516 1385.5 897 873 175.1
B 12 111 20694 113.18 897 873 175.1
B 11 111 17364 94.16 897 873 175.1
C 3 233 24593 116.06 872 877 204.3
C 13 61 6427 27.16 872 877 204.3
C 8 128 4086 15.7 872 877 204.3
D 13 249 91243 430.85 860 836 209.8
D 1 52 76122 358.79 860 836 209.8
D 13 104 50561 236.97 860 836 209.8

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