ASTROSAT CZTI

Data Quality Report

Orbit 04528

Creation date: 2024-06-27T14:43:20.537447
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/AS1G05_250T01_9000000568_04528cztM0_level2.evt modeM0/AS1G05_250T01_9000000568_04528cztM0_level2_quad_clean.evt
Size (bytes)470,223,36085,222,080
Size448.4 MB 81.3 MB
Events in quadrant A4,697,575527,080
Events in quadrant B3,008,642549,096
Events in quadrant C2,872,730540,559
Events in quadrant D3,226,809517,316

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0183463
B0133732
C0131162
D0144762

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64015218.139353%
B6401250.390564%
C6401170.265584%
D6401570.890486%

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 7616 6402 344 344 4.52% 5.37%
B 7616 6402 3 3 0.04% 0.05%
C 7616 6402 1 1 0.01% 0.02%
D 7616 6402 45 45 0.59% 0.70%

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 0 13 1862282 12893.43 708 692 144.4
A 8 15 56705 387.95 708 692 144.4
A 14 111 32492 220.25 708 692 144.4
B 4 48 75845 532.39 743 725 141.1
B 4 80 16266 110.14 743 725 141.1
B 15 204 14825 99.93 743 725 141.1
C 9 247 29985 177.08 714 718 165.3
C 14 48 26910 158.47 714 718 165.3
C 12 4 13964 80.14 714 718 165.3
D 7 67 159504 957.7 699 682 165.8
D 13 235 121215 726.81 699 682 165.8
D 13 239 113651 681.2 699 682 165.8

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