ASTROSAT CZTI

Data Quality Report

Orbit 21214

Creation date: 2024-06-27T18:25:02.275034
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/AS1A06_002T01_9000003134_21214cztM0_level2.evt modeM0/AS1A06_002T01_9000003134_21214cztM0_level2_quad_clean.evt
Size (bytes)429,140,16060,030,720
Size409.3 MB 57.2 MB
Events in quadrant A5,731,237305,003
Events in quadrant B1,951,130420,576
Events in quadrant C1,943,195406,627
Events in quadrant D3,086,030389,680

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0840
B0840
C0840
D0840

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0196771
B084731
C084891
D0119471

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B050
C050
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4187170140.625746%
B4187170.406019%
C4187300.716503%
D4187831.982326%

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 4186 4186 1554 1554 37.12% 37.12%
B 4187 4187 0 0 0.00% 0.00%
C 4187 4187 0 0 0.00% 0.00%
D 4187 4187 69 69 1.65% 1.65%

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 15 236 4209018 52715.72 389 381 79.8
A 11 47 18058 221.42 389 381 79.8
A 13 254 3934 44.5 389 381 79.8
B 0 190 11324 112.15 491 479 96.7
B 12 111 11069 109.51 491 479 96.7
B 11 111 9704 95.4 491 479 96.7
C 14 238 75119 665.34 471 473 112.2
C 3 233 28553 250.28 471 473 112.2
C 13 61 3399 26.08 471 473 112.2
D 1 52 408184 3509.41 476 463 116.2
D 7 238 237692 2041.92 476 463 116.2
D 13 174 201154 1727.43 476 463 116.2

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