ASTROSAT CZTI

Data Quality Report

Orbit 22568

Creation date: 2024-06-27T18:42:54.896092
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/AS1A07_148T05_9000003346_22568cztM0_level2.evt modeM0/AS1A07_148T05_9000003346_22568cztM0_level2_quad_clean.evt
Size (bytes)155,027,52016,925,760
Size147.8 MB 16.1 MB
Events in quadrant A1,074,10192,454
Events in quadrant B1,142,74994,631
Events in quadrant C1,070,97691,935
Events in quadrant D1,271,53989,911

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A044021
B045841
C043301
D050811

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0380
B0380
C0380
D0380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1966180.915565%
B1966462.339776%
C1966271.373347%
D1966291.475076%

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 1966 1966 0 0 0.00% 0.00%
B 1966 1966 2 2 0.10% 0.10%
C 1966 1966 0 0 0.00% 0.00%
D 1966 1966 15 15 0.76% 0.76%

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 13 34 37835 676.76 268 263 55.5
A 13 254 3549 59.19 268 263 55.5
A 0 226 2413 38.73 268 263 55.5
B 15 33 66791 1286.45 265 259 51.7
B 0 230 13718 260.24 265 259 51.7
B 0 228 11976 226.56 265 259 51.7
C 14 238 40864 652.67 261 264 62.2
C 0 10 7067 109.36 261 264 62.2
C 10 222 2217 31.4 261 264 62.2
D 1 52 201969 3092.81 264 257 65.2
D 2 136 39265 598.1 264 257 65.2
D 13 172 21275 322.27 264 257 65.2

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