ASTROSAT CZTI

Data Quality Report

Orbit 09321

Creation date: 2024-06-27T15:44:28.335250
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/AS1G07_009T01_9000001318_09321cztM0_level2.evt modeM0/AS1G07_009T01_9000001318_09321cztM0_level2_quad_clean.evt
Size (bytes)512,519,040101,828,160
Size488.8 MB 97.1 MB
Events in quadrant A3,775,528662,874
Events in quadrant B3,592,760684,691
Events in quadrant C3,198,047671,213
Events in quadrant D4,515,815613,597

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0250
C0260
D0260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153720
B0148410
C0137200
D0177200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64751392.146718%
B64761922.964793%
C6482901.388460%
D64474947.662479%

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 9150 6531 11 11 0.12% 0.17%
B 9150 6529 56 56 0.61% 0.86%
C 9150 6530 0 0 0.00% 0.00%
D 9150 6523 323 323 3.53% 4.95%

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 8 5 467896 2785.56 821 803 167.7
A 1 162 96998 573.67 821 803 167.7
A 1 178 21662 124.4 821 803 167.7
B 10 245 324964 2043.15 829 809 158.7
B 0 219 17319 104.06 829 809 158.7
B 12 111 17054 102.39 829 809 158.7
C 9 68 8056 38.56 817 820 187.7
C 13 61 6026 27.74 817 820 187.7
C 10 22 3579 14.7 817 820 187.7
D 12 227 1320027 7106.28 776 761 185.6
D 12 233 155268 832.26 776 761 185.6
D 1 52 37700 198.97 776 761 185.6

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