ASTROSAT CZTI

Data Quality Report

Orbit 42386

Creation date: 2024-06-27T22:39:40.820092
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/AS1C06_010T01_9000005800_42386cztM0_level2.fits modeM0/AS1C06_010T01_9000005800_42386cztM0_level2_quad_clean.evt
Size (bytes)349,214,40089,052,480
Size333.0 MB 84.9 MB
Events in quadrant A2,865,094620,241
Events in quadrant B2,911,677605,989
Events in quadrant C2,671,092588,735
Events in quadrant D4,079,784522,551

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0260
C0260
D0260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114072
B0120642
C0109552
D0156312

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5125110.214634%
B51251492.907317%
C5125220.429268%
D51244037.864949%

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 7098 5126 3 3 0.04% 0.06%
B 7098 5126 114 114 1.61% 2.22%
C 7098 5126 18 18 0.25% 0.35%
D 7097 5125 336 336 4.73% 6.56%

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 591973 4979.9 582 570 118.8
A 13 6 13513 108.99 582 570 118.8
A 13 248 9865 78.27 582 570 118.8
B 4 81 475096 4458.0 564 551 106.4
B 15 36 71434 665.89 564 551 106.4
B 5 172 45629 423.47 564 551 106.4
C 15 214 220547 1708.54 555 559 128.8
C 14 254 155548 1203.72 555 559 128.8
C 8 79 62001 477.19 555 559 128.8
D 2 16 785759 5864.72 553 538 133.9
D 10 118 295468 2202.79 553 538 133.9
D 12 233 284671 2122.15 553 538 133.9

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