ASTROSAT CZTI

Data Quality Report

Orbit 03074

Creation date: 2024-06-27T14:24:17.347750
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_238T03_9000000424_03074cztM0_level2.evt modeM0/AS1G05_238T03_9000000424_03074cztM0_level2_quad_clean.evt
Size (bytes)335,635,20054,106,560
Size320.1 MB 51.6 MB
Events in quadrant A2,103,606324,115
Events in quadrant B2,688,013318,630
Events in quadrant C2,227,617319,167
Events in quadrant D2,791,860312,685

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0103813
B0115842
C0106732
D0122012

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0330
B0330
C0330
D0340

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A518630.057848%
B5186230.443502%
C5186210.404936%
D5186651.253374%

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 7311 5187 0 0 0.00% 0.00%
B 7311 5187 9 9 0.12% 0.17%
C 7311 5187 12 12 0.16% 0.23%
D 7311 5187 79 79 1.08% 1.52%

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 20098 182.48 529 518 107.3
A 8 15 19362 175.62 529 518 107.3
A 0 50 8927 78.37 529 518 107.3
B 15 204 408672 3919.25 540 529 104.1
B 0 219 43728 414.82 540 529 104.1
B 3 0 29315 276.42 540 529 104.1
C 14 223 48629 387.94 521 523 124.0
C 1 16 43253 344.59 521 523 124.0
C 6 80 39990 318.27 521 523 124.0
D 13 114 357276 2845.33 516 501 125.4
D 2 152 152206 1209.87 516 501 125.4
D 2 136 90642 718.89 516 501 125.4

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