ASTROSAT CZTI

Data Quality Report

Orbit 42374

Creation date: 2024-06-27T22:39:33.455207
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/AS1C06_010T01_9000005800_42374cztM0_level2.fits modeM0/AS1C06_010T01_9000005800_42374cztM0_level2_quad_clean.evt
Size (bytes)321,868,80088,980,480
Size307.0 MB 84.9 MB
Events in quadrant A2,861,917611,765
Events in quadrant B2,455,607605,908
Events in quadrant C2,569,811583,731
Events in quadrant D3,634,249539,639

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0250
C0250
D0250

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0115372
B0107682
C0106972
D0142722

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5043100.198295%
B5043270.535396%
C5043160.317271%
D50431813.589133%

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 7196 5044 4 4 0.06% 0.08%
B 7196 5044 9 9 0.13% 0.18%
C 7196 5044 7 7 0.10% 0.14%
D 7196 5044 147 147 2.04% 2.91%

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 10 83 616483 5334.61 563 551 115.5
A 7 3 28804 244.7 563 551 115.5
A 13 6 15273 127.51 563 551 115.5
B 5 172 75204 721.33 553 539 103.5
B 5 255 55702 532.92 553 539 103.5
B 0 230 49307 471.14 553 539 103.5
C 15 214 215723 1694.63 549 552 127.0
C 14 254 105116 823.52 549 552 127.0
C 9 54 35569 275.78 549 552 127.0
D 12 233 507253 3831.08 548 532 132.3
D 1 52 445106 3361.21 548 532 132.3
D 1 47 199134 1501.54 548 532 132.3

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