ASTROSAT CZTI

Data Quality Report

Orbit 20230612_T05_117T01_9000005684_level2

Creation date: 2023-06-14T14:44:49.571414
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/AS1T05_117T01_9000005684cztM0_level2.fits modeM0/AS1T05_117T01_9000005684cztM0_level2_quad_clean.evt
Size (bytes)314,591,040341,530,560
Size300.0 MB 325.7 MB
Events in quadrant A1,873,1142,081,949
Events in quadrant B1,806,4382,098,478
Events in quadrant C1,830,1081,978,944
Events in quadrant D1,545,6781,712,438

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A07380
B07380
C07380
D07380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0775080
B0742480
C0772100
D01045940

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A359621280.355931%
B35962600.166843%
C359623320.923197%
D3596226597.393916%

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 46173 35962 0 0 0.00% 0.00%
B 46173 35961 0 0 0.00% 0.00%
C 46173 35948 0 0 0.00% 0.00%
D 46173 35916 0 0 0.00% 0.00%

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 29 1526 8.54 488 457 125.1
A 7 110 1505 8.37 488 457 125.1
A 9 19 1504 8.37 488 457 125.1
B 2 9 1540 11.45 476 452 95.0
B 3 80 1305 8.98 476 452 95.0
B 3 17 1235 8.24 476 452 95.0
C 1 81 1585 9.2 482 451 123.2
C 1 80 1542 8.85 482 451 123.2
C 3 202 1486 8.4 482 451 123.2
D 6 38 1136 6.16 442 402 119.3
D 4 160 1128 6.09 442 402 119.3
D 10 189 1122 6.04 442 402 119.3

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