ASTROSAT CZTI

Data Quality Report

Orbit 22303

Creation date: 2024-06-27T18:39:13.532588
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_049T01_9000003298_22303cztM0_level2.evt modeM0/AS1A07_049T01_9000003298_22303cztM0_level2_quad_clean.evt
Size (bytes)427,559,04090,956,160
Size407.8 MB 86.7 MB
Events in quadrant A3,096,726586,518
Events in quadrant B3,193,204608,482
Events in quadrant C3,165,321567,976
Events in quadrant D3,061,188547,956

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0220
C0220
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131912
B0134282
C0133892
D0133362

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6353150.236109%
B6353190.299071%
C6353590.928695%
D6353180.283331%

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 7598 6354 0 0 0.00% 0.00%
B 7598 6354 0 0 0.00% 0.00%
C 7598 6354 0 0 0.00% 0.00%
D 7598 6354 3 3 0.04% 0.05%

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 7781 43.34 803 788 161.4
A 0 226 6948 38.18 803 788 161.4
A 3 137 6670 36.45 803 788 161.4
B 12 111 18055 112.35 810 792 153.7
B 11 111 15864 98.09 810 792 153.7
B 14 111 14388 88.48 810 792 153.7
C 14 238 124529 683.37 779 785 181.1
C 0 10 7027 34.47 779 785 181.1
C 13 61 5431 25.66 779 785 181.1
D 1 52 39293 203.11 780 759 189.7
D 2 136 25655 131.22 780 759 189.7
D 2 234 23878 121.86 780 759 189.7

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