ASTROSAT CZTI

Data Quality Report

Orbit 41299

Creation date: 2024-06-27T22:27:11.546811
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/AS1T05_106T01_9000005642_41299cztM0_level2.fits modeM0/AS1T05_106T01_9000005642_41299cztM0_level2_quad_clean.evt
Size (bytes)374,065,92089,161,920
Size356.7 MB 85.0 MB
Events in quadrant A2,986,004614,680
Events in quadrant B2,541,970644,672
Events in quadrant C3,239,907573,213
Events in quadrant D4,668,833498,580

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0119623
B0110602
C0127332
D0174432

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0330
B0330
C0330
D0340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5265320.607787%
B526570.132953%
C52652845.394112%
D526563312.022792%

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 7208 5266 32 32 0.44% 0.61%
B 7208 5266 1 1 0.01% 0.02%
C 7208 5266 275 275 3.82% 5.22%
D 7208 5266 635 635 8.81% 12.06%

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 496582 4172.75 585 574 118.9
A 6 10 164346 1377.76 585 574 118.9
A 12 189 60259 502.11 585 574 118.9
B 7 202 150767 1327.36 591 574 113.2
B 0 229 24003 207.06 591 574 113.2
B 0 245 16129 137.47 591 574 113.2
C 0 10 803010 6114.74 564 567 131.2
C 15 214 218866 1663.47 564 567 131.2
C 12 249 17225 126.94 564 567 131.2
D 1 47 1054356 7828.86 551 534 134.6
D 2 249 425250 3155.22 551 534 134.6
D 12 233 356911 2647.53 551 534 134.6

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