ASTROSAT CZTI

Data Quality Report

Orbit 43406

Creation date: 2024-06-27T22:51:37.498914
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_018T01_9000005874_43406cztM0_level2.fits modeM0/AS1A12_018T01_9000005874_43406cztM0_level2_quad_clean.evt
Size (bytes)331,692,48091,059,840
Size316.3 MB 86.8 MB
Events in quadrant A3,358,619606,461
Events in quadrant B2,874,615618,996
Events in quadrant C2,622,467593,430
Events in quadrant D2,979,347540,375

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133182
B0124822
C0114912
D0127752

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0250
C0250
D0250

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A56871162.039740%
B56871172.057324%
C568730.052752%
D5687731.283629%

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 7090 5688 67 67 0.94% 1.18%
B 7090 5688 98 98 1.38% 1.72%
C 7090 5688 0 0 0.00% 0.00%
D 7090 5688 60 60 0.85% 1.05%

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 635812 5098.06 604 589 124.6
A 15 237 338796 2714.32 604 589 124.6
A 13 248 21066 164.34 604 589 124.6
B 5 255 283658 2448.9 597 580 115.6
B 0 189 96095 826.3 597 580 115.6
B 0 190 53144 454.73 597 580 115.6
C 15 214 237260 1692.74 590 591 139.8
C 3 233 68035 482.38 590 591 139.8
C 14 254 10419 70.29 590 591 139.8
D 1 52 359091 2532.2 585 568 141.6
D 2 249 109283 767.84 585 568 141.6
D 13 249 84911 595.7 585 568 141.6

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