ASTROSAT CZTI

Data Quality Report

Orbit 17356

Creation date: 2024-06-27T17:35:25.514043
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/AS1A05_165T12_9000002562_17356cztM0_level2.evt modeM0/AS1A05_165T12_9000002562_17356cztM0_level2_quad_clean.evt
Size (bytes)482,860,80098,424,000
Size460.5 MB 93.9 MB
Events in quadrant A3,294,876652,583
Events in quadrant B3,363,773663,486
Events in quadrant C3,291,005617,355
Events in quadrant D4,233,810595,522

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0250

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138872
B0139932
C0138602
D0170262

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64751602.471042%
B64761912.949351%
C64761953.011118%
D64762744.231007%

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 9000 6477 1 1 0.01% 0.02%
B 9001 6478 1 1 0.01% 0.02%
C 9001 6478 0 0 0.00% 0.00%
D 9001 6478 132 132 1.47% 2.04%

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 0 226 7691 40.12 855 838 170.8
A 3 137 6123 30.94 855 838 170.8
A 12 194 6007 30.26 855 838 170.8
B 12 111 18664 111.2 855 835 160.3
B 11 111 16001 94.59 855 835 160.3
B 14 111 13589 79.55 855 835 160.3
C 14 238 126295 669.86 808 814 187.3
C 3 233 15860 80.32 808 814 187.3
C 13 61 5790 26.56 808 814 187.3
D 13 189 376771 1923.84 810 788 195.4
D 13 232 345726 1764.99 810 788 195.4
D 13 172 127231 646.99 810 788 195.4

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