ASTROSAT CZTI

Data Quality Report

Orbit 26305

Creation date: 2024-06-27T19:27:16.825389
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_008T02_9000003796_26305cztM0_level2.evt modeM0/AS1A09_008T02_9000003796_26305cztM0_level2_quad_clean.evt
Size (bytes)156,470,40045,578,880
Size149.2 MB 43.5 MB
Events in quadrant A1,128,952301,021
Events in quadrant B1,140,327310,943
Events in quadrant C1,185,232299,617
Events in quadrant D1,119,472296,706

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A049460
B049690
C050010
D049560

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2384833.481544%
B23841044.362416%
C23841184.949664%
D2384642.684564%

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 2659 2386 0 0 0.00% 0.00%
B 2659 2386 0 0 0.00% 0.00%
C 2659 2386 0 0 0.00% 0.00%
D 2659 2386 1 1 0.04% 0.04%

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 13 254 3448 52.35 292 284 60.4
A 3 137 2776 41.23 292 284 60.4
A 0 226 2468 36.13 292 284 60.4
B 12 111 6908 115.38 290 282 57.4
B 11 111 6294 104.69 290 282 57.4
B 14 111 5684 94.07 290 282 57.4
C 14 238 45288 652.99 288 288 68.9
C 8 128 5996 82.83 288 288 68.9
C 3 233 5827 80.38 288 288 68.9
D 2 234 9104 124.94 292 284 70.6
D 11 176 7080 96.27 292 284 70.6
D 13 243 2947 37.72 292 284 70.6

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