ASTROSAT CZTI

Data Quality Report

Orbit 04658

Creation date: 2024-06-27T14:45:11.574562
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_218T03_9000000582_04658cztM0_level2.evt modeM0/AS1G05_218T03_9000000582_04658cztM0_level2_quad_clean.evt
Size (bytes)435,746,88086,532,480
Size415.6 MB 82.5 MB
Events in quadrant A3,150,746555,303
Events in quadrant B3,168,896564,216
Events in quadrant C2,844,791544,985
Events in quadrant D3,606,832519,323

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136843
B0137702
C0129372
D0152012

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6254290.463703%
B6254490.783499%
C6254270.431724%
D6254791.263192%

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 7469 6255 5 5 0.07% 0.08%
B 7469 6255 2 2 0.03% 0.03%
C 7469 6255 0 0 0.00% 0.00%
D 7469 6255 35 35 0.47% 0.56%

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 7 16 255180 1677.6 739 721 151.7
A 8 15 41596 269.48 739 721 151.7
A 10 17 14807 92.87 739 721 151.7
B 10 16 105012 728.63 751 735 143.1
B 15 204 76938 532.46 751 735 143.1
B 4 80 17987 120.55 751 735 143.1
C 13 61 5995 31.26 727 733 168.4
C 7 247 4986 25.26 727 733 168.4
C 12 4 2107 8.16 727 733 168.4
D 8 112 468045 2710.0 716 694 172.5
D 13 235 132456 764.04 716 694 172.5
D 10 15 92774 533.94 716 694 172.5

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