ASTROSAT CZTI

Data Quality Report

Orbit 26629

Creation date: 2024-06-27T19:31:09.915007
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/AS1A09_145T01_9000003848_26629cztM0_level2.evt modeM0/AS1A09_145T01_9000003848_26629cztM0_level2_quad_clean.evt
Size (bytes)486,141,12087,359,040
Size463.6 MB 83.3 MB
Events in quadrant A3,014,784571,123
Events in quadrant B4,819,569569,640
Events in quadrant C3,061,184550,714
Events in quadrant D3,422,961537,476

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125460
B0186300
C0126900
D0140260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5964601.006036%
B59652864.794635%
C5965891.492037%
D59651021.709975%

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 6979 5965 23 23 0.33% 0.39%
B 6980 5966 14 14 0.20% 0.23%
C 6980 5966 3 3 0.04% 0.05%
D 6980 5966 61 61 0.87% 1.02%

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 13 115569 754.47 748 735 152.2
A 13 254 9613 58.33 748 735 152.2
A 5 168 8341 49.97 748 735 152.2
B 0 189 1837786 13074.82 735 720 140.5
B 10 245 86318 609.22 735 720 140.5
B 12 111 16636 113.28 735 720 140.5
C 3 233 139860 829.14 712 719 167.8
C 14 238 115602 684.58 712 719 167.8
C 15 208 17337 99.03 712 719 167.8
D 1 52 431873 2452.03 719 702 175.8
D 7 80 93382 527.06 719 702 175.8
D 12 233 79979 450.84 719 702 175.8

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