ASTROSAT CZTI

Data Quality Report

Orbit 20231201_A13_071T06_9000005972_level2

Creation date: 2023-12-05T14:09:55.359116
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_9000005972cztM0_level2.fits modeM0/AS1A13_071T06_9000005972cztM0_level2_quad_clean.evt
Size (bytes)466,686,720503,729,280
Size445.1 MB 480.4 MB
Events in quadrant A2,699,9582,864,999
Events in quadrant B2,735,5343,222,381
Events in quadrant C2,881,6563,125,752
Events in quadrant D2,101,7142,338,083

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02004530
B01369030
C01161100
D02123150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010960
B010960
C010960
D010960

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0780
B0800
C0800
D0800

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A53982699412.956171%
B5398327085.016394%
C539797191.331999%
D539801384725.652093%

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 70451 53853 0 0 0.00% 0.00%
B 70452 53973 0 0 0.00% 0.00%
C 70452 53980 0 0 0.00% 0.00%
D 70452 53326 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 7 110 2199 8.68 703 659 177.3
A 0 29 2170 8.52 703 659 177.3
A 15 236 2072 7.97 703 659 177.3
B 2 9 2485 12.48 724 690 143.8
B 2 8 1974 8.93 724 690 143.8
B 5 232 1904 8.44 724 690 143.8
C 3 202 2271 7.94 763 713 196.2
C 1 81 2232 7.74 763 713 196.2
C 3 203 2151 7.33 763 713 196.2
D 6 79 1542 5.87 606 550 169.1
D 6 38 1540 5.85 606 550 169.1
D 10 189 1534 5.82 606 550 169.1

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