ASTROSAT CZTI

Data Quality Report

Orbit 44222

Creation date: 2024-06-27T23:00:41.196053
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/AS1A13_071T06_9000005972_44222cztM0_level2.fits modeM0/AS1A13_071T06_9000005972_44222cztM0_level2_quad_clean.evt
Size (bytes)1,477,013,760204,307,200
Size1.4 GB 194.8 MB
Events in quadrant A12,405,3141,465,713
Events in quadrant B8,753,6801,534,179
Events in quadrant C7,047,9521,507,535
Events in quadrant D25,308,039644,379

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0489354
B0359754
C0319334
D0853454

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03060
B03060
C03060
D03060

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1496913489.005278%
B149707414.949900%
C149702951.970608%
D14970866057.849031%

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 16389 14973 725 725 4.42% 4.84%
B 16390 14974 226 226 1.38% 1.51%
C 16390 14974 52 52 0.32% 0.35%
D 16390 14974 6448 6448 39.34% 43.06%

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 10 83 2989247 8868.58 1626 1592 336.9
A 15 223 2873435 8524.8 1626 1592 336.9
A 2 79 127156 372.73 1626 1592 336.9
B 0 219 802802 2473.05 1646 1594 324.0
B 0 200 467499 1438.09 1646 1594 324.0
B 4 170 203260 622.47 1646 1594 324.0
C 14 254 333028 865.5 1629 1634 382.9
C 4 254 244648 634.68 1629 1634 382.9
C 3 233 64718 164.75 1629 1634 382.9
D 4 221 12595009 43815.27 1121 1083 287.4
D 12 2 5385803 18733.87 1121 1083 287.4
D 13 249 1411491 4906.92 1121 1083 287.4

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