ASTROSAT CZTI

Data Quality Report

Orbit 47528

Creation date: 2024-07-12T16:13:19.575627
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/AS1C09_002T01_9000006334_47528cztM0_level2.fits modeM0/AS1C09_002T01_9000006334_47528cztM0_level2_quad_clean.evt
Size (bytes)1,707,131,520359,447,040
Size1.6 GB 342.8 MB
Events in quadrant A22,806,4802,358,269
Events in quadrant B10,705,0852,445,506
Events in quadrant C10,027,7012,385,430
Events in quadrant D17,879,3682,112,459

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0839305
B0479283
C0473246
D0691393

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04640
B04640
C04640
D04640

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A229808493.694517%
B229824151.805761%
C229803051.327241%
D2298214286.213558%

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 24161 22985 167 167 0.69% 0.73%
B 24162 22986 88 88 0.36% 0.38%
C 24162 22986 47 47 0.19% 0.20%
D 24162 22986 961 961 3.98% 4.18%

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 12222401 23732.84 2485 2428 514.9
A 13 248 550636 1064.69 2485 2428 514.9
A 9 191 394013 760.51 2485 2428 514.9
B 0 198 265402 542.9 2493 2409 484.4
B 5 32 219421 447.98 2493 2409 484.4
B 0 190 109989 222.08 2493 2409 484.4
C 12 2 190345 325.23 2477 2482 577.6
C 14 254 94864 159.93 2477 2482 577.6
C 12 250 44593 72.9 2477 2482 577.6
D 2 165 4662129 7741.94 2427 2355 601.9
D 2 249 1287568 2135.31 2427 2355 601.9
D 7 38 927484 1537.05 2427 2355 601.9

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