ASTROSAT CZTI

Data Quality Report

Orbit 13098

Creation date: 2024-06-27T16:36:17.337895
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/AS1C03_023T01_9000001930_13098cztM0_level2.evt modeM0/AS1C03_023T01_9000001930_13098cztM0_level2_quad_clean.evt
Size (bytes)583,983,36098,784,000
Size556.9 MB 94.2 MB
Events in quadrant A4,666,860622,223
Events in quadrant B4,868,547659,151
Events in quadrant C3,162,389650,485
Events in quadrant D4,546,300604,965

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0179783
B0186062
C0134802
D0180882

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65235268.063774%
B652372911.175839%
C6523120.183964%
D6523640.981144%

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 7824 6525 368 368 4.70% 5.64%
B 7824 6525 410 410 5.24% 6.28%
C 7824 6525 1 1 0.01% 0.02%
D 7824 6525 48 48 0.61% 0.74%

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 15 223 932639 5760.21 795 781 161.8
A 15 239 416304 2568.52 795 781 161.8
A 12 189 136178 836.95 795 781 161.8
B 4 239 1325844 9223.4 773 757 143.7
B 0 85 466859 3244.35 773 757 143.7
B 12 111 16302 108.2 773 757 143.7
C 14 234 6403 29.9 808 814 186.9
C 13 61 5904 27.23 808 814 186.9
C 8 222 4129 17.74 808 814 186.9
D 10 157 1128947 5885.23 793 771 191.7
D 8 195 282080 1467.47 793 771 191.7
D 12 110 57280 294.78 793 771 191.7

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