ASTROSAT CZTI

Data Quality Report

Orbit 20230607_C07_001T10_9000005678_level2

Creation date: 2023-06-10T10:57:28.519536
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/AS1C07_001T10_9000005678cztM0_level2.fits modeM0/AS1C07_001T10_9000005678cztM0_level2_quad_clean.evt
Size (bytes)740,796,480937,065,600
Size706.5 MB 893.7 MB
Events in quadrant A4,447,0686,018,373
Events in quadrant B4,279,6526,017,089
Events in quadrant C4,205,9245,456,625
Events in quadrant D3,706,9765,098,928

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A017260
B017260
C017260
D017260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01825080
B01837040
C02283350
D02267510

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03080
B03080
C03080
D03080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A844642250.266386%
B844643290.389515%
C8446472118.537365%
D8446445325.365600%

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 113843 84463 0 0 0.00% 0.00%
B 113843 84463 0 0 0.00% 0.00%
C 113842 83960 0 0 0.00% 0.00%
D 113843 84229 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 0 29 3654 8.72 1163 1089 294.2
A 9 19 3624 8.62 1163 1089 294.2
A 7 110 3574 8.45 1163 1089 294.2
B 2 9 3662 11.88 1132 1081 217.3
B 3 80 3224 9.86 1132 1081 217.3
B 3 17 3031 8.97 1132 1081 217.3
C 1 81 3574 8.91 1111 1043 284.1
C 1 80 3465 8.53 1111 1043 284.1
C 3 202 3324 8.03 1111 1043 284.1
D 7 3 2783 6.44 1062 970 281.6
D 4 160 2738 6.28 1062 970 281.6
D 6 62 2711 6.18 1062 970 281.6

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