ASTROSAT CZTI

Data Quality Report

Orbit 42590

Creation date: 2024-06-27T22:41:55.533811
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/AS1A12_061T07_9000005818_42590cztM0_level2.fits modeM0/AS1A12_061T07_9000005818_42590cztM0_level2_quad_clean.evt
Size (bytes)286,920,00090,308,160
Size273.6 MB 86.1 MB
Events in quadrant A2,781,817603,587
Events in quadrant B2,335,179624,949
Events in quadrant C2,465,947608,272
Events in quadrant D2,651,147550,535

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0111733
B0101522
C0101482
D0111982

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0320
C0320
D0320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4957170.342949%
B4957160.322776%
C495760.121041%
D4957601.210410%

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 7049 4958 7 7 0.10% 0.14%
B 7049 4958 8 8 0.11% 0.16%
C 7049 4958 0 0 0.00% 0.00%
D 7049 4958 49 49 0.70% 0.99%

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 521222 4471.59 572 560 116.4
A 15 237 21709 181.63 572 560 116.4
A 13 248 17849 148.48 572 560 116.4
B 5 255 55448 504.0 569 553 108.9
B 0 245 28421 255.86 569 553 108.9
B 5 252 15464 136.9 569 553 108.9
C 15 214 208909 1586.88 572 575 131.3
C 12 249 8013 56.65 572 575 131.3
C 4 254 6499 45.12 572 575 131.3
D 1 47 146697 1064.59 568 554 137.3
D 12 6 134212 973.64 568 554 137.3
D 13 249 114133 827.37 568 554 137.3

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