ASTROSAT CZTI

Data Quality Report

Orbit 41353

Creation date: 2024-06-27T22:28:02.522949
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/AS1T05_105T01_9000005658_41353cztM0_level2.fits modeM0/AS1T05_105T01_9000005658_41353cztM0_level2_quad_clean.evt
Size (bytes)360,123,84092,914,560
Size343.4 MB 88.6 MB
Events in quadrant A3,015,008640,182
Events in quadrant B2,566,442648,936
Events in quadrant C3,355,531591,129
Events in quadrant D3,955,223539,756

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0270

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125353
B0115022
C0134092
D0156292

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5627140.248800%
B5627150.266572%
C56272604.620579%
D56273606.397725%

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 7180 5628 7 7 0.10% 0.12%
B 7179 5627 1 1 0.01% 0.02%
C 7179 5626 238 238 3.32% 4.23%
D 7179 5626 339 339 4.72% 6.03%

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 541907 4147.55 628 615 130.5
A 12 189 36411 274.28 628 615 130.5
A 13 248 7882 55.68 628 615 130.5
B 0 190 65551 528.59 622 605 122.9
B 0 229 30910 246.65 622 605 122.9
B 12 111 15567 121.77 622 605 122.9
C 0 10 808511 5755.85 591 596 140.4
C 15 214 229864 1633.38 591 596 140.4
C 12 249 5245 33.12 591 596 140.4
D 12 217 937809 6336.85 596 580 147.9
D 1 52 234577 1582.11 596 580 147.9
D 13 249 217739 1468.27 596 580 147.9

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