ASTROSAT CZTI

Data Quality Report

Orbit 14532

Creation date: 2024-06-27T16:56:30.871339
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/AS1T02_049T01_9000002142_14532cztM0_level2.evt modeM0/AS1T02_049T01_9000002142_14532cztM0_level2_quad_clean.evt
Size (bytes)505,641,600118,301,760
Size482.2 MB 112.8 MB
Events in quadrant A5,201,949751,265
Events in quadrant B3,358,974815,284
Events in quadrant C3,305,526813,835
Events in quadrant D3,024,699768,027

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0196163
B0141582
C0138362
D0133162

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62265418.689367%
B6226410.658529%
C6226300.481850%
D6226260.417604%

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 7577 6228 380 380 5.02% 6.10%
B 7577 6228 5 5 0.07% 0.08%
C 7577 6228 0 0 0.00% 0.00%
D 7577 6228 8 8 0.11% 0.13%

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 8 15 2328907 15863.8 733 717 146.8
A 12 189 29750 197.82 733 717 146.8
A 0 23 14427 93.42 733 717 146.8
B 0 189 74685 524.29 774 755 141.0
B 0 219 70151 492.13 774 755 141.0
B 3 209 43021 299.74 774 755 141.0
C 3 233 335641 1940.53 761 766 172.6
C 13 61 5587 27.94 761 766 172.6
C 14 225 3038 13.17 761 766 172.6
D 2 120 86190 475.69 746 726 179.7
D 10 199 40473 221.23 746 726 179.7
D 15 0 38216 208.67 746 726 179.7

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