Multigrades Classification Model of Magnesite Ore Based on SAE and ELM

Table 1

Spectrum test time and corresponding temperature and humidity.

Testing time	Solar elevation angle	Temperature (°C)	Humidity (% rh)
10:48	61°15′	23.9	18.8
11:48	63°15′	27.8	14.3
12:48	59°50′	31.2	12.8