ASTROSAT CZTI

Data Quality Report

Orbit 12228

Creation date: 2024-06-27T16:24:05.966256
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/AS1C03_014T02_9000001806_12228cztM0_level2.evt modeM0/AS1C03_014T02_9000001806_12228cztM0_level2_quad_clean.evt
Size (bytes)512,812,800124,652,160
Size489.1 MB 118.9 MB
Events in quadrant A3,694,885854,350
Events in quadrant B5,230,870806,871
Events in quadrant C2,978,885858,408
Events in quadrant D3,199,881817,628

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151082
B0196171
C0130951
D0136861

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62811051.671708%
B628189414.233402%
C6281631.003025%
D62811161.846840%

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 7427 6283 4 4 0.05% 0.06%
B 7427 6281 515 515 6.93% 8.20%
C 7427 6283 0 0 0.00% 0.00%
D 7427 6283 51 51 0.69% 0.81%

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 13 251 199559 1284.59 775 760 154.8
A 1 162 186046 1197.27 775 760 154.8
A 1 178 103231 662.14 775 760 154.8
B 4 239 2205480 16281.58 725 708 135.4
B 11 51 87245 639.05 725 708 135.4
B 3 209 32535 235.03 725 708 135.4
C 13 61 5647 28.18 760 763 173.3
C 4 175 3964 18.47 760 763 173.3
C 8 128 3957 18.43 760 763 173.3
D 1 52 191109 1078.67 754 736 176.5
D 13 104 39718 220.88 754 736 176.5
D 2 234 28115 155.13 754 736 176.5

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