ASTROSAT CZTI

Data Quality Report

Orbit 28528

Creation date: 2024-06-27T19:52:52.495863
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/AS1A10_058T09_9000004100_28528cztM0_level2.evt modeM0/AS1A10_058T09_9000004100_28528cztM0_level2_quad_clean.evt
Size (bytes)551,914,560106,560,000
Size526.3 MB 101.6 MB
Events in quadrant A4,248,652729,377
Events in quadrant B3,676,760732,812
Events in quadrant C3,109,318687,497
Events in quadrant D5,268,443653,096

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0166671
B0149021
C0131221
D0199661

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60764807.899934%
B60771151.892381%
C6077811.332895%
D60774517.421425%

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 7291 6076 410 410 5.62% 6.75%
B 7292 6077 42 42 0.58% 0.69%
C 7292 6077 0 0 0.00% 0.00%
D 7292 6077 374 374 5.13% 6.15%

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 15 174 1174767 7428.49 792 779 158.0
A 13 254 11327 66.74 792 779 158.0
A 1 113 8641 49.75 792 779 158.0
B 10 245 386022 2572.17 797 780 149.8
B 0 230 51891 341.26 797 780 149.8
B 4 171 47418 311.39 797 780 149.8
C 14 238 125954 711.91 759 766 175.8
C 3 233 16656 90.36 759 766 175.8
C 7 247 6374 31.89 759 766 175.8
D 1 52 1434522 7899.78 761 741 181.5
D 8 195 819137 4509.16 761 741 181.5
D 7 238 38599 208.59 761 741 181.5

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