ASTROSAT CZTI

Data Quality Report

Orbit 39316

Creation date: 2024-06-27T22:03:08.807208
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_9000005468_39316cztM0_level2.fits modeM0/AS1A12_061T07_9000005468_39316cztM0_level2_quad_clean.evt
Size (bytes)490,968,00088,534,080
Size468.2 MB 84.4 MB
Events in quadrant A2,957,225659,456
Events in quadrant B2,521,105692,762
Events in quadrant C2,809,608651,002
Events in quadrant D9,499,097328,766

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0290

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0115863
B0102762
C0111172
D0317022

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4974350.703659%
B497450.100523%
C4974320.643345%
D4974265753.417772%

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 7037 4975 23 23 0.33% 0.46%
B 7037 4975 0 0 0.00% 0.00%
C 7037 4975 20 20 0.28% 0.40%
D 7037 4975 2255 2255 32.04% 45.33%

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 391261 3157.38 618 608 123.7
A 13 248 126431 1016.94 618 608 123.7
A 15 222 48416 386.4 618 608 123.7
B 5 255 59300 502.5 621 607 116.8
B 12 111 14154 115.98 621 607 116.8
B 11 111 13186 107.7 621 607 116.8
C 15 214 226305 1576.13 614 621 143.2
C 14 254 118287 821.76 614 621 143.2
C 9 187 64313 444.81 614 621 143.2
D 12 235 7244117 62057.77 476 463 116.7
D 12 227 221541 1894.02 476 463 116.7
D 13 249 162224 1385.84 476 463 116.7

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