ASTROSAT CZTI

Data Quality Report

Orbit 43990

Creation date: 2024-06-27T22:58:01.069920
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_065T06_9000005924_43990cztM0_level2.fits modeM0/AS1A13_065T06_9000005924_43990cztM0_level2_quad_clean.evt
Size (bytes)1,795,775,040254,090,880
Size1.7 GB 242.3 MB
Events in quadrant A31,834,271764,831
Events in quadrant B11,584,2691,923,397
Events in quadrant C9,421,3571,952,705
Events in quadrant D12,173,2411,753,415

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03820
B03820
C03820
D03820

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01077593
B0472683
C0414943
D0491063

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A188401236765.642251%
B1884112846.814925%
C188403111.650743%
D188407193.816348%

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 20615 18843 6185 6185 30.00% 32.82%
B 20616 18844 640 640 3.10% 3.40%
C 20615 18843 131 131 0.64% 0.70%
D 20615 18843 470 470 2.28% 2.49%

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 15 223 22906734 91599.31 1196 1170 250.1
A 14 238 2573943 10288.52 1196 1170 250.1
A 10 83 1702018 6801.69 1196 1170 250.1
B 5 172 2326759 5554.79 2094 2024 418.5
B 15 36 334296 793.94 2094 2024 418.5
B 4 171 138540 326.2 2094 2024 418.5
C 15 158 669794 1330.44 2119 2132 501.8
C 14 254 206691 407.62 2119 2132 501.8
C 3 233 176195 346.85 2119 2132 501.8
D 1 52 1388893 2552.26 2113 2042 543.4
D 2 120 507555 930.31 2113 2042 543.4
D 13 171 485111 889.01 2113 2042 543.4

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