ASTROSAT CZTI

Data Quality Report

Orbit 24404

Creation date: 2024-06-27T19:05:39.466672
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/AS1A07_001T02_9000003600_24404cztM0_level2.evt modeM0/AS1A07_001T02_9000003600_24404cztM0_level2_quad_clean.evt
Size (bytes)326,592,00079,341,120
Size311.5 MB 75.7 MB
Events in quadrant A2,318,359527,404
Events in quadrant B2,370,093541,529
Events in quadrant C2,417,386508,026
Events in quadrant D2,463,055493,966

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A098161
B098671
C099201
D0103362

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0980
B0980
C0980
D0960

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4720150.317797%
B4720170.360169%
C4720410.868644%
D4719250.529773%

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 6060 4721 0 0 0.00% 0.00%
B 6060 4721 1 1 0.02% 0.02%
C 6060 4721 0 0 0.00% 0.00%
D 6059 4720 10 10 0.17% 0.21%

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 13 254 6997 53.21 601 589 120.4
A 0 226 5105 37.5 601 589 120.4
A 3 137 5072 37.22 601 589 120.4
B 12 111 12913 109.58 603 589 112.5
B 11 111 11960 101.11 603 589 112.5
B 14 111 10426 87.47 603 589 112.5
C 14 238 95390 719.38 575 580 131.8
C 7 247 63447 477.01 575 580 131.8
C 2 16 12994 94.19 575 580 131.8
D 1 52 178752 1279.54 576 560 139.3
D 12 218 56491 401.62 576 560 139.3
D 2 234 20561 143.62 576 560 139.3

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