ASTROSAT CZTI

Data Quality Report

Orbit 10069

Creation date: 2024-06-27T15:54:44.278333
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_039T01_9000001444_10069cztM0_level2.evt modeM0/AS1G07_039T01_9000001444_10069cztM0_level2_quad_clean.evt
Size (bytes)822,689,280164,373,120
Size784.6 MB 156.8 MB
Events in quadrant A5,709,3591,039,779
Events in quadrant B6,024,5751,057,138
Events in quadrant C5,552,9011,045,011
Events in quadrant D6,800,653991,506

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02503710
B0255325
C0248967
D0278587

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0230

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02500
B02500
C02500
D02500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A122141200.982479%
B122161431.170596%
C122151050.859599%
D122152031.661891%

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 14102 12217 1 1 0.01% 0.01%
B 14102 12217 10 10 0.07% 0.08%
C 14102 12217 1 1 0.01% 0.01%
D 14102 12217 97 97 0.69% 0.79%

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 15 34044 110.85 1458 1429 294.2
A 8 5 28482 91.94 1458 1429 294.2
A 0 8 25078 80.37 1458 1429 294.2
B 0 214 153313 545.8 1462 1429 278.3
B 4 239 48600 169.51 1462 1429 278.3
B 0 219 44463 154.64 1462 1429 278.3
C 14 234 15609 43.26 1415 1423 327.9
C 14 67 15579 43.17 1415 1423 327.9
C 13 61 10526 27.76 1415 1423 327.9
D 8 195 437873 1238.06 1402 1361 352.6
D 10 199 231338 652.27 1402 1361 352.6
D 12 233 215268 606.69 1402 1361 352.6

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