ASTROSAT CZTI

Data Quality Report

Orbit 04601

Creation date: 2024-06-27T14:44:11.137376
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_167T02_9000000574_04601cztM0_level2.evt modeM0/AS1G05_167T02_9000000574_04601cztM0_level2_quad_clean.evt
Size (bytes)470,197,44075,833,280
Size448.4 MB 72.3 MB
Events in quadrant A2,966,018468,722
Events in quadrant B3,133,956479,794
Events in quadrant C4,494,331470,530
Events in quadrant D3,226,458445,881

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130693
B0132292
C0179432
D0141072

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6184290.468952%
B6184520.840880%
C6184220.355757%
D6184781.261320%

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 7474 6185 2 2 0.03% 0.03%
B 7474 6185 14 14 0.19% 0.23%
C 7474 6185 0 0 0.00% 0.00%
D 7474 6185 43 43 0.58% 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 15 174 104227 682.68 741 726 151.6
A 12 194 7353 43.71 741 726 151.6
A 0 226 7351 43.7 741 726 151.6
B 14 167 83370 579.3 754 739 142.6
B 4 48 48278 333.28 754 739 142.6
B 4 170 20064 135.48 754 739 142.6
C 14 48 1662599 9853.09 724 728 168.7
C 13 61 5941 30.91 724 728 168.7
C 12 4 4492 22.32 724 728 168.7
D 2 136 147355 856.84 712 695 171.2
D 13 235 129477 752.39 712 695 171.2
D 8 112 78980 457.37 712 695 171.2

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