ASTROSAT CZTI

Data Quality Report

Orbit 10672

Creation date: 2024-06-27T16:02:17.599245
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/AS1A03_097T01_9000001540_10672cztM0_level2.evt modeM0/AS1A03_097T01_9000001540_10672cztM0_level2_quad_clean.evt
Size (bytes)603,982,08088,712,640
Size576.0 MB 84.6 MB
Events in quadrant A4,657,050526,744
Events in quadrant B4,787,008546,419
Events in quadrant C3,558,606556,101
Events in quadrant D4,769,484523,777

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190621
B0193370
C0159680
D0189780

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76585727.469313%
B76584285.588927%
C7658961.253591%
D76581542.010969%

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 7658 7658 396 396 5.17% 5.17%
B 7658 7658 133 133 1.74% 1.74%
C 7658 7658 9 9 0.12% 0.12%
D 7658 7658 41 41 0.54% 0.54%

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 15 239 1154561 6355.55 885 865 181.5
A 3 1 35749 192.17 885 865 181.5
A 1 162 31488 168.7 885 865 181.5
B 4 239 1071517 6190.36 897 875 173.0
B 4 81 63782 363.72 897 875 173.0
B 0 214 50451 286.64 897 875 173.0
C 14 234 49124 231.99 889 893 207.9
C 8 128 13541 60.84 889 893 207.9
C 4 175 10428 45.86 889 893 207.9
D 8 195 767820 3617.46 879 855 212.0
D 10 199 359731 1692.67 879 855 212.0
D 13 249 66033 307.42 879 855 212.0

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