ASTROSAT CZTI

Data Quality Report

Orbit 43360

Creation date: 2024-06-27T22:51:01.207774
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/AS1A09_143T01_9000005870_43360cztM0_level2.fits modeM0/AS1A09_143T01_9000005870_43360cztM0_level2_quad_clean.evt
Size (bytes)325,330,56082,019,520
Size310.3 MB 78.2 MB
Events in quadrant A3,015,344547,708
Events in quadrant B2,345,160574,787
Events in quadrant C2,343,830545,866
Events in quadrant D3,947,916464,064

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0310
C0310
D0310

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01207422
B01051419
C01015618
D01553720

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A50121282.553871%
B5006320.639233%
C500720.039944%
D50074809.586579%

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 7111 5018 97 97 1.36% 1.93%
B 7111 5014 18 18 0.25% 0.36%
C 7111 5014 0 0 0.00% 0.00%
D 7111 5013 461 461 6.48% 9.20%

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 554365 5063.44 533 521 109.4
A 15 237 241677 2204.74 533 521 109.4
A 13 248 147522 1343.94 533 521 109.4
B 5 172 108398 1041.01 536 520 103.6
B 0 189 89294 856.66 536 520 103.6
B 0 186 17217 161.12 536 520 103.6
C 15 214 209668 1730.69 520 522 120.8
C 3 233 84359 693.75 520 522 120.8
C 7 220 14591 116.42 520 522 120.8
D 1 52 1508218 12243.12 499 485 123.1
D 12 233 180791 1464.12 499 485 123.1
D 12 218 115595 934.72 499 485 123.1

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