ASTROSAT CZTI

Data Quality Report

Orbit 44183

Creation date: 2024-06-27T23:00:17.046063
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_074T12_9000005960_44183cztM0_level2.fits modeM0/AS1A13_074T12_9000005960_44183cztM0_level2_quad_clean.evt
Size (bytes)601,879,68098,965,440
Size574.0 MB 94.4 MB
Events in quadrant A4,964,165714,097
Events in quadrant B4,369,783727,828
Events in quadrant C3,298,159698,307
Events in quadrant D9,172,448428,590

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0195041
B0171791
C0140441
D0315374

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61272033.313204%
B61283205.221932%
C6128651.060705%
D6127220335.955606%

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 7352 6128 102 102 1.39% 1.66%
B 7353 6129 165 165 2.24% 2.69%
C 7353 6129 49 49 0.67% 0.80%
D 7352 6128 1995 1995 27.14% 32.56%

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 1484421 9965.52 710 696 148.9
A 15 223 641479 4303.85 710 696 148.9
A 7 3 18436 119.15 710 696 148.9
B 5 235 457486 3361.22 705 688 135.9
B 0 200 263904 1936.8 705 688 135.9
B 0 189 159198 1166.35 705 688 135.9
C 14 254 278952 1709.71 686 691 162.8
C 3 233 118567 724.26 686 691 162.8
C 9 54 106818 652.07 686 691 162.8
D 1 52 2530838 17514.97 567 549 144.5
D 13 168 1807251 12506.21 567 549 144.5
D 13 249 770818 5331.9 567 549 144.5

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