ASTROSAT CZTI

Data Quality Report

Orbit 08140

Creation date: 2024-06-27T15:28:34.858043
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/AS1A03_051T01_9000001120_08140cztM0_level2.evt modeM0/AS1A03_051T01_9000001120_08140cztM0_level2_quad_clean.evt
Size (bytes)551,992,320124,704,000
Size526.4 MB 118.9 MB
Events in quadrant A3,961,723801,535
Events in quadrant B4,103,882817,297
Events in quadrant C3,953,568793,670
Events in quadrant D4,107,057760,470

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01780
B01780
C01780
D01780

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01790021
B01808421
C0179389
D01853619

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8687881.013008%
B86871742.002993%
C86921291.484123%
D86881131.300645%

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 9065 8698 0 0 0.00% 0.00%
B 9065 8698 0 0 0.00% 0.00%
C 9065 8698 0 0 0.00% 0.00%
D 9065 8698 18 18 0.20% 0.21%

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 0 226 9480 40.23 1028 1005 210.6
A 12 194 9199 38.9 1028 1005 210.6
A 13 254 4501 16.59 1028 1005 210.6
B 0 214 35024 171.04 1037 1010 198.9
B 12 111 22662 108.88 1037 1010 198.9
B 11 111 17961 85.24 1037 1010 198.9
C 1 16 15726 62.42 1008 1010 235.8
C 13 61 7535 27.67 1008 1010 235.8
C 12 4 3152 9.08 1008 1010 235.8
D 1 52 137397 548.26 991 964 248.8
D 12 233 107490 428.08 991 964 248.8
D 12 227 59322 234.51 991 964 248.8

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