ASTROSAT CZTI

Data Quality Report

Orbit 33273

Creation date: 2024-06-27T20:46:54.236432
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/AS1A11_047T10_9000004778_33273cztM0_level2.evt modeM0/AS1A11_047T10_9000004778_33273cztM0_level2_quad_clean.evt
Size (bytes)144,999,36023,768,640
Size138.3 MB 22.7 MB
Events in quadrant A704,931157,094
Events in quadrant B1,064,422153,291
Events in quadrant C826,320153,389
Events in quadrant D1,685,927138,815

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A032041
B042611
C034491
D061501

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A158310.063171%
B15831096.885660%
C1583140.884397%
D158320412.886924%

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 3046 1584 0 0 0.00% 0.00%
B 3046 1584 53 53 1.74% 3.35%
C 3046 1584 9 9 0.30% 0.57%
D 3046 1584 172 172 5.65% 10.86%

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 2723 65.59 181 178 38.8
A 3 137 1773 41.11 181 178 38.8
A 13 6 1748 40.46 181 178 38.8
B 5 172 332700 9157.76 178 174 36.3
B 5 200 15326 417.29 178 174 36.3
B 4 170 8065 217.32 178 174 36.3
C 15 214 70043 1659.69 176 178 42.1
C 0 10 44532 1053.66 176 178 42.1
C 7 221 7022 162.58 176 178 42.1
D 8 195 311396 7272.36 166 161 42.8
D 12 6 303527 7088.49 166 161 42.8
D 2 249 250690 5853.89 166 161 42.8

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