ASTROSAT CZTI

Data Quality Report

Orbit 52673

Creation date: 2025-06-24T05:36:28.093960
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/AS1C09_011T07_9000006480_52673cztM0_level2.fits modeM0/AS1C09_011T07_9000006480_52673cztM0_level2_quad_clean.evt
Size (bytes)871,608,96079,390,080
Size831.2 MB 75.7 MB
Events in quadrant A3,536,284625,201
Events in quadrant B8,294,569539,220
Events in quadrant C7,139,792521,904
Events in quadrant D12,786,041258,904

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152434
B0292442
C0258392
D0425452

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6567671.020253%
B6567153623.389676%
C6567101915.516979%
D6568383458.373934%

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 7616 6566 31 31 0.41% 0.47%
B 7616 6566 1097 1097 14.40% 16.71%
C 7616 6566 999 999 13.12% 15.21%
D 7617 6567 3863 3863 50.72% 58.82%

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 3 14 387123 2301.54 672 654 167.9
A 4 238 145668 863.6 672 654 167.9
A 5 240 74824 441.71 672 654 167.9
B 10 128 3948263 29867.81 626 605 132.2
B 12 32 426525 3222.49 626 605 132.2
B 4 170 306516 2314.51 626 605 132.2
C 15 248 2735939 15827.15 618 612 172.8
C 12 252 552723 3194.62 618 612 172.8
C 13 3 361850 2090.2 618 612 172.8
D 8 176 6737431 53072.06 425 403 126.9
D 6 42 2763510 21766.84 425 403 126.9
D 1 7 559884 4407.4 425 403 126.9

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