ASTROSAT CZTI

Data Quality Report

Orbit 42513

Creation date: 2024-06-27T22:41:04.728779
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/AS1C07_001T10_9000005806_42513cztM0_level2.fits modeM0/AS1C07_001T10_9000005806_42513cztM0_level2_quad_clean.evt
Size (bytes)376,850,88096,629,760
Size359.4 MB 92.2 MB
Events in quadrant A3,309,035645,375
Events in quadrant B3,509,133643,633
Events in quadrant C3,584,761632,523
Events in quadrant D3,081,461586,487

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0310
C0310
D0310

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136612
B0144113
C0145742
D0137092

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5982130.217319%
B59811181.972914%
C5982120.200602%
D59821081.805416%

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 9177 5984 6 6 0.07% 0.10%
B 9176 5983 93 93 1.01% 1.55%
C 9177 5984 6 6 0.07% 0.10%
D 9177 5984 93 93 1.01% 1.55%

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 617563 4731.41 637 623 130.4
A 13 248 104925 799.91 637 623 130.4
A 12 189 75691 575.71 637 623 130.4
B 0 229 873121 7148.24 627 609 122.1
B 0 245 137426 1120.9 627 609 122.1
B 5 255 22759 181.47 627 609 122.1
C 0 239 874984 6040.68 619 621 144.7
C 15 214 265335 1828.82 619 621 144.7
C 7 220 23948 161.16 619 621 144.7
D 12 6 165332 1089.03 620 602 151.3
D 2 249 158066 1040.99 620 602 151.3
D 13 249 129291 850.76 620 602 151.3

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