ASTROSAT CZTI

Data Quality Report

Orbit 45729

Creation date: 2024-06-27T23:15:29.480994
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/AS1T05_183T01_9000006124_45729cztM0_level2.fits modeM0/AS1T05_183T01_9000006124_45729cztM0_level2_quad_clean.evt
Size (bytes)1,465,966,080311,846,400
Size1.4 GB 297.4 MB
Events in quadrant A17,836,3462,053,511
Events in quadrant B12,258,7252,096,403
Events in quadrant C9,348,0342,090,380
Events in quadrant D13,292,0641,835,271

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04040
B04040
C04040
D04040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0664343
B0496043
C0420734
D0532983

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A198185302.674336%
B198186543.300030%
C198181900.958724%
D198188804.440408%

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 21178 19821 86 86 0.41% 0.43%
B 21178 19820 334 334 1.58% 1.69%
C 21178 19819 83 83 0.39% 0.42%
D 21178 19819 645 645 3.05% 3.25%

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 10 83 8319495 17772.83 2239 2187 468.0
A 13 248 471523 1002.9 2239 2187 468.0
A 14 235 262583 556.43 2239 2187 468.0
B 3 112 1506800 3416.21 2240 2166 440.4
B 15 201 771694 1747.18 2240 2166 440.4
B 4 171 265033 596.83 2240 2166 440.4
C 14 254 348525 665.12 2217 2233 520.6
C 12 2 141404 267.31 2217 2233 520.6
C 3 233 103983 195.43 2217 2233 520.6
D 1 52 2660908 4862.13 2174 2108 546.8
D 13 249 1070870 1954.44 2174 2108 546.8
D 2 249 535786 975.93 2174 2108 546.8

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