ASTROSAT CZTI

Data Quality Report

Orbit 42429

Creation date: 2024-06-27T22:40:03.896813
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/AS1C07_001T10_9000005806_42429cztM0_level2.fits modeM0/AS1C07_001T10_9000005806_42429cztM0_level2_quad_clean.evt
Size (bytes)307,019,52087,912,000
Size292.8 MB 83.8 MB
Events in quadrant A2,835,248597,175
Events in quadrant B2,347,985604,030
Events in quadrant C2,420,559575,418
Events in quadrant D3,363,354527,894

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0280
C0280
D0280

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114212
B0105402
C0103732
D0134822

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5100130.254902%
B5100120.235294%
C510050.098039%
D51001603.137255%

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 7042 5101 6 6 0.09% 0.12%
B 7042 5101 6 6 0.09% 0.12%
C 7042 5101 2 2 0.03% 0.04%
D 7042 5101 134 134 1.90% 2.63%

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 546622 4679.97 570 560 116.7
A 7 3 41786 353.32 570 560 116.7
A 14 223 20095 167.42 570 560 116.7
B 3 112 41819 379.78 561 547 108.7
B 5 255 36865 334.19 561 547 108.7
B 5 172 29580 267.16 561 547 108.7
C 15 214 215203 1689.87 548 551 127.0
C 14 254 33407 258.66 548 551 127.0
C 0 207 12142 91.25 548 551 127.0
D 1 52 345016 2607.06 549 533 132.1
D 13 249 214929 1622.56 549 533 132.1
D 12 33 210309 1587.59 549 533 132.1

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