ASTROSAT CZTI

Data Quality Report

Orbit 44370

Creation date: 2024-06-27T23:02:45.964671
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/AS1A13_008T06_9000005994_44370cztM0_level2.fits modeM0/AS1A13_008T06_9000005994_44370cztM0_level2_quad_clean.evt
Size (bytes)415,500,48064,664,640
Size396.3 MB 61.7 MB
Events in quadrant A7,210,885322,859
Events in quadrant B2,177,368481,320
Events in quadrant C2,730,843441,851
Events in quadrant D2,935,029416,361

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A1140222807197736140222092279854
B1-1-1
C1-1-1
D1-1-1

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0840
B0840
C0840
D0840

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0243391
B092261
C0110231
D0115561

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4193170540.663010%
B4193551.311710%
C41932485.914620%
D41931543.672788%

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 4193 4193 1517 1517 36.18% 36.18%
B 4193 4193 29 29 0.69% 0.69%
C 4193 4193 225 225 5.37% 5.37%
D 4193 4193 155 155 3.70% 3.70%

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 15 223 4396461 49472.39 419 410 88.9
A 10 83 1007811 11337.12 419 410 88.9
A 13 248 153227 1719.78 419 410 88.9
B 15 36 112120 1169.03 474 460 95.5
B 5 172 59361 616.67 474 460 95.5
B 0 219 36718 379.61 474 460 95.5
C 14 96 891151 8305.24 449 452 107.2
C 14 254 52269 483.16 449 452 107.2
C 14 112 13357 120.33 449 452 107.2
D 13 249 346195 2985.33 458 446 115.8
D 5 222 258352 2226.86 458 446 115.8
D 8 240 180795 1557.2 458 446 115.8

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