ASTROSAT CZTI

Data Quality Report

Orbit 26429

Creation date: 2024-06-27T19:28:54.284406
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/AS1A09_127T03_9000003820_26429cztM0_level2.evt modeM0/AS1A09_127T03_9000003820_26429cztM0_level2_quad_clean.evt
Size (bytes)173,488,32047,574,720
Size165.5 MB 45.4 MB
Events in quadrant A1,237,901326,617
Events in quadrant B1,171,551335,539
Events in quadrant C1,177,827317,938
Events in quadrant D1,521,903308,148

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050900
B048270
C048420
D059750

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2100341.619048%
B2101120.571157%
C2101251.189910%
D2101753.569729%

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 2100 2100 26 26 1.24% 1.24%
B 2101 2101 4 4 0.19% 0.19%
C 2101 2101 4 4 0.19% 0.19%
D 2101 2101 61 61 2.90% 2.90%

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 0 13 116776 2075.47 279 273 56.1
A 6 16 24136 425.11 279 273 56.1
A 5 203 12019 209.25 279 273 56.1
B 0 244 25873 492.34 278 273 52.0
B 5 172 25744 489.86 278 273 52.0
B 0 182 18061 342.1 278 273 52.0
C 14 238 42839 675.62 271 274 63.0
C 2 16 36298 571.8 271 274 63.0
C 3 233 35204 554.43 271 274 63.0
D 12 233 189503 2909.74 272 266 65.0
D 1 52 163003 2502.27 272 266 65.0
D 7 223 56705 867.82 272 266 65.0

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