ASTROSAT CZTI

Data Quality Report

Orbit 41030

Creation date: 2024-06-27T22:23:29.254817
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/AS1A12_029T02_9000005590_41030cztM0_level2.fits modeM0/AS1A12_029T02_9000005590_41030cztM0_level2_quad_clean.evt
Size (bytes)342,604,80094,656,960
Size326.7 MB 90.3 MB
Events in quadrant A2,971,384632,004
Events in quadrant B2,679,100650,619
Events in quadrant C3,373,245614,640
Events in quadrant D3,205,236562,570

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01252616
B0119379
C01380120
D01404137

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0290

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5813110.189231%
B5817220.378202%
C58151692.906277%
D58112163.717088%

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 7195 5819 2 2 0.03% 0.03%
B 7195 5821 1 1 0.01% 0.02%
C 7195 5821 149 149 2.07% 2.56%
D 7195 5820 162 162 2.25% 2.78%

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 518584 4028.28 624 610 128.6
A 12 189 42110 322.74 624 610 128.6
A 13 254 8469 61.12 624 610 128.6
B 0 229 102385 831.8 623 607 122.4
B 0 245 86037 698.19 623 607 122.4
B 15 32 25463 203.14 623 607 122.4
C 14 254 618700 4389.13 606 610 140.8
C 15 214 245993 1742.49 606 610 140.8
C 0 10 71785 505.42 606 610 140.8
D 13 249 459965 3135.14 600 584 146.5
D 13 171 190240 1294.35 600 584 146.5
D 12 0 151749 1031.66 600 584 146.5

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