ASTROSAT CZTI

Data Quality Report

Orbit 43043

Creation date: 2024-06-27T22:47:16.724871
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_148T01_9000005838_43043cztM0_level2.fits modeM0/AS1T05_148T01_9000005838_43043cztM0_level2_quad_clean.evt
Size (bytes)384,151,680103,619,520
Size366.4 MB 98.8 MB
Events in quadrant A3,273,023729,378
Events in quadrant B2,943,643733,397
Events in quadrant C2,749,196705,087
Events in quadrant D4,831,618589,198

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0270
C0270
D0270

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131972
B0123302
C0114592
D0180733

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5434551.012146%
B5434490.901730%
C543440.073611%
D54334878.963740%

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 7047 5435 40 40 0.57% 0.74%
B 7047 5434 33 33 0.47% 0.61%
C 7047 5435 3 3 0.04% 0.06%
D 7046 5433 444 444 6.30% 8.17%

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 597387 4257.29 634 623 140.2
A 15 237 175120 1244.85 634 623 140.2
A 12 189 48582 342.14 634 623 140.2
B 0 186 192820 1470.93 634 621 130.7
B 4 171 87338 663.66 634 621 130.7
B 0 189 63200 478.93 634 621 130.7
C 15 214 237191 1555.88 618 626 152.0
C 0 239 87155 569.1 618 626 152.0
C 3 233 9412 57.79 618 626 152.0
D 1 52 1692422 10957.27 590 572 154.4
D 10 118 561068 3630.05 590 572 154.4
D 1 4 207652 1341.15 590 572 154.4

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