ASTROSAT CZTI

Data Quality Report

Orbit 31897

Creation date: 2024-06-27T20:32:19.510588
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/AS1T04_034T01_9000004632_31897cztM0_level2.evt modeM0/AS1T04_034T01_9000004632_31897cztM0_level2_quad_clean.evt
Size (bytes)344,226,24050,443,200
Size328.3 MB 48.1 MB
Events in quadrant A1,706,419331,241
Events in quadrant B2,679,802325,535
Events in quadrant C3,285,722311,525
Events in quadrant D2,517,530313,378

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0751
B0740
C0740
D0740

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A07359232
B010892378
C012563315
D010129291

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3458280.809717%
B3450671.942029%
C34492727.886344%
D3451822.376123%

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 4257 3481 0 0 0.00% 0.00%
B 4254 3472 6 6 0.14% 0.17%
C 4251 3473 64 64 1.51% 1.84%
D 4252 3475 53 53 1.25% 1.53%

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 6533 68.5 437 429 89.1
A 3 1 6259 65.42 437 429 89.1
A 13 254 5632 58.39 437 429 89.1
B 6 159 939141 11159.81 427 416 84.1
B 0 229 30577 358.56 427 416 84.1
B 10 245 14124 162.96 427 416 84.1
C 3 233 1471031 15141.74 406 407 97.1
C 0 10 149239 1532.39 406 407 97.1
C 14 238 66121 676.6 406 407 97.1
D 8 195 538574 5287.52 417 404 101.8
D 12 233 161937 1587.06 417 404 101.8
D 7 238 146523 1435.62 417 404 101.8

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