ASTROSAT CZTI

Data Quality Report

Orbit 12065

Creation date: 2024-06-27T16:22:02.699552
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/AS1A04_176T01_9000001786_12065cztM0_level2.evt modeM0/AS1A04_176T01_9000001786_12065cztM0_level2_quad_clean.evt
Size (bytes)564,376,320102,113,280
Size538.2 MB 97.4 MB
Events in quadrant A3,420,692672,356
Events in quadrant B5,368,316640,807
Events in quadrant C3,228,779660,519
Events in quadrant D4,585,650616,727

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151233
B0209882
C0148192
D0186162

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72031281.777037%
B72036338.788005%
C7203590.819103%
D72034045.608774%

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 7874 7204 6 6 0.08% 0.08%
B 7874 7205 315 315 4.00% 4.37%
C 7874 7206 0 0 0.00% 0.00%
D 7874 7206 294 294 3.73% 4.08%

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 1 162 29620 163.29 853 834 176.3
A 13 251 21452 116.96 853 834 176.3
A 13 248 19454 105.63 853 834 176.3
B 4 239 1289329 8003.14 826 803 161.0
B 4 206 640247 3971.64 826 803 161.0
B 15 204 94736 583.43 826 803 161.0
C 14 234 7196 33.28 826 828 191.4
C 13 61 6070 27.39 826 828 191.4
C 3 202 2083 6.56 826 828 191.4
D 1 52 1085347 5595.97 802 775 193.8
D 8 195 180858 929.16 802 775 193.8
D 12 221 89270 456.6 802 775 193.8

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