ASTROSAT CZTI

Data Quality Report

Orbit 45486

Creation date: 2024-06-27T23:12:47.154134
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/AS1A13_054T01_9000006098_45486cztM0_level2.fits modeM0/AS1A13_054T01_9000006098_45486cztM0_level2_quad_clean.evt
Size (bytes)217,169,28049,227,840
Size207.1 MB 46.9 MB
Events in quadrant A2,606,171323,931
Events in quadrant B1,462,386346,248
Events in quadrant C1,433,153322,910
Events in quadrant D2,313,233293,112

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A097451
B061671
C062071
D088851

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0600
B0600
C0600
D0600

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A28611635.697309%
B2861782.726319%
C2861812.831178%
D28611364.753583%

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 3891 2862 4 4 0.10% 0.14%
B 3891 2862 1 1 0.03% 0.03%
C 3891 2862 0 0 0.00% 0.00%
D 3891 2862 55 55 1.41% 1.92%

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 1218983 16477.81 351 343 74.0
A 2 79 25143 335.33 351 343 74.0
A 7 191 6202 79.22 351 343 74.0
B 3 112 27959 387.97 352 342 71.2
B 15 201 26596 368.82 352 342 71.2
B 12 111 8866 119.75 352 342 71.2
C 12 2 48044 573.7 346 348 83.1
C 3 233 22456 265.92 346 348 83.1
C 14 254 6070 68.83 346 348 83.1
D 11 241 512758 5760.18 345 333 89.0
D 1 52 232550 2610.35 345 333 89.0
D 13 249 89483 1002.14 345 333 89.0

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